Hearing and Sound Waves Overview

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Questions and Answers

What is the primary function of hearing as described?

  • To facilitate communication and relationships (correct)
  • To enhance visual recognition
  • To detect physical danger exclusively
  • To interpret written language

Why is hearing loss often considered an invisible disability?

  • It does not produce visible physical signs (correct)
  • It can be easily detected by others
  • It only affects communication in noise
  • It does not affect social skills

How sensitive are humans to faint sounds according to the content?

  • We can hear faint sounds but not distinguish them
  • We are completely insensitive to faint sounds
  • We are remarkably sensitive to faint sounds (correct)
  • We can only hear loud sounds clearly

What is a key advantage of hearing over vision as mentioned in the content?

<p>Hearing reacts to new or sudden sounds faster than vision (A)</p> Signup and view all the answers

What impact does hearing loss have on mental health according to the content?

<p>It increases the risk of depression (A)</p> Signup and view all the answers

Why might hearing be considered a unique sense compared to others?

<p>Hearing communicates through invisible means (A)</p> Signup and view all the answers

What is a remarkable ability of humans regarding sound variations?

<p>Humans can easily recognize familiar voices among many (B)</p> Signup and view all the answers

What factor contributes to the complexity of the sensory system as noted in the content?

<p>The number of pages dedicated to each sense (D)</p> Signup and view all the answers

What is the primary cause of sensorineural hearing loss?

<p>Damage to the cochlea's receptor cells or auditory nerves (D)</p> Signup and view all the answers

Which of the following is a common factor linked to sensorineural hearing loss?

<p>Biological changes related to aging (A)</p> Signup and view all the answers

What distinguishes conduction hearing loss from sensorineural hearing loss?

<p>It is linked to mechanical system damage. (C)</p> Signup and view all the answers

Why might individuals experience ringing in their ears after exposure to loud sounds?

<p>It indicates possible hearing damage. (C)</p> Signup and view all the answers

How do cochlear implants function to help individuals with hearing loss?

<p>By translating sounds into electrical signals (C)</p> Signup and view all the answers

What factor has contributed to the increase in teen hearing loss since the early 1990s?

<p>Increased exposure to loud music (C)</p> Signup and view all the answers

According to research, which group is reported to have a higher rate of noise-induced hearing loss?

<p>Professional musicians (B)</p> Signup and view all the answers

What role does volume play in how individuals with hearing loss perceive sounds?

<p>Soft sounds are often amplified more than loud sounds. (C)</p> Signup and view all the answers

What is the critical period in relation to hearing?

<p>A time when the brain can best learn to process sound. (B)</p> Signup and view all the answers

What aspect of sound localization does place theory explain?

<p>It clarifies pitch perception through specific hair cell activation. (C)</p> Signup and view all the answers

What is a common result of exposure to noise above 99 decibels?

<p>Temporary hearing difficulties and ringing in the ears. (D)</p> Signup and view all the answers

How does the brain interpret loudness from sound?

<p>By the number of activated hair cells. (A)</p> Signup and view all the answers

What preventive measure is recommended for individuals exposed to loud environments?

<p>Wearing earplugs. (C)</p> Signup and view all the answers

What determines the pitch of a sound?

<p>The frequency of the sound wave (A)</p> Signup and view all the answers

How are sound waves amplified in the ear?

<p>Through the bones of the middle ear (D)</p> Signup and view all the answers

What effect does increasing decibels have on sound intensity?

<p>Every increase of 10 decibels corresponds to a tenfold increase in sound intensity. (A)</p> Signup and view all the answers

Which part of the ear is responsible for converting sound waves into nerve impulses?

<p>Cochlea (C)</p> Signup and view all the answers

What can result from prolonged exposure to sounds above 85 decibels?

<p>Hearing loss (A)</p> Signup and view all the answers

What measurement is used to quantify sound amplitude?

<p>Decibels (D)</p> Signup and view all the answers

Where do hair cells send the auditory impulses after they are triggered?

<p>To the thalamus (B)</p> Signup and view all the answers

Which characteristic of sound waves influences their perceived loudness?

<p>Wave amplitude (B)</p> Signup and view all the answers

What happens when the eardrum vibrates?

<p>It triggers the movement of the hair cells in the cochlea. (B)</p> Signup and view all the answers

Why are hair cells described as extremely sensitive?

<p>They respond to very small displacements. (D)</p> Signup and view all the answers

What role does the auditory nerve play in hearing?

<p>It transmits the neural messages from hair cells to the brain. (B)</p> Signup and view all the answers

How is frequency related to wavelength in sound waves?

<p>Shorter wavelengths correspond to higher frequencies. (A)</p> Signup and view all the answers

What is the main function of the three bones in the middle ear?

<p>To amplify and relay eardrum vibrations (D)</p> Signup and view all the answers

What is the absolute threshold for hearing measured at?

<p>0 decibels (A)</p> Signup and view all the answers

What does place theory explain about sound perception?

<p>How we sense high-pitched sounds (B)</p> Signup and view all the answers

What does frequency theory suggest about hearing?

<p>Neural impulses travel at a rate that matches the frequency of a tone (C)</p> Signup and view all the answers

How does the volley principle contribute to sound perception?

<p>It enables neural cells to alternate firing to detect higher frequencies (C)</p> Signup and view all the answers

What plays a critical role in locating sounds with two ears?

<p>The delay and intensity difference between ears (D)</p> Signup and view all the answers

What characteristic of sound waves determines our perception of loudness?

<p>The amplitude of the sound waves (A)</p> Signup and view all the answers

What does the frequency of sound waves correspond to in terms of perception?

<p>Pitch (B)</p> Signup and view all the answers

Why can't individual neurons fire faster than 1000 times per second?

<p>They require time to recover after firing (B)</p> Signup and view all the answers

What is a key reason for the existence of two ears instead of one large ear?

<p>To facilitate stereophonic hearing (C)</p> Signup and view all the answers

How do the middle ear bones amplify sound vibrations?

<p>By mechanically converting vibrations through leverage (A)</p> Signup and view all the answers

What limits the frequencies that individual neurons can perceive?

<p>The recovery time after firing (C)</p> Signup and view all the answers

What type of hearing loss results from damage to the cochlea's hair cells?

<p>Sensorineural hearing loss (D)</p> Signup and view all the answers

What aspect of sound is crucial for determining the position of two sound sources?

<p>The time difference in sound arrival (D)</p> Signup and view all the answers

What enables the perception of pitches in the intermediate range?

<p>A combination of frequency and place theories (B)</p> Signup and view all the answers

Which option best describes the physical properties of the sound waves produced by a loudly played tuba?

<p>Long wavelength; large amplitude (A)</p> Signup and view all the answers

What type of deafness is most likely to occur in musicians who have been exposed to loud music for many years?

<p>Sensorineural (A)</p> Signup and view all the answers

Which theory explains that pitch is related to stimulation of different areas of the cochlea’s basilar membrane?

<p>Place theory (B)</p> Signup and view all the answers

Which part of the ear vibrates first when listening to music?

<p>Eardrum (D)</p> Signup and view all the answers

How do the hammer, anvil, and stirrup function in sound transmission?

<p>They transmit vibrations from the eardrum to the oval window. (B)</p> Signup and view all the answers

What is a primary role of the cochlea in hearing?

<p>To convert sound vibrations to neural signals (C)</p> Signup and view all the answers

What happens when both cold and warm spots on the skin are stimulated?

<p>They create a sensation of heat. (B)</p> Signup and view all the answers

In what way does pain serve a biological purpose?

<p>It draws attention to potential injuries. (B)</p> Signup and view all the answers

What effect do placebos have on pain perception?

<p>They alter the perception of pain. (B)</p> Signup and view all the answers

What is a significant feature of the sense of touch?

<p>It includes sensations like heat and pain. (B)</p> Signup and view all the answers

What overall effect does touch have on development in infants?

<p>It promotes faster growth and better health. (B)</p> Signup and view all the answers

What impact can a person's cognitive state have on touch sensations?

<p>It can modify how touch is perceived. (A)</p> Signup and view all the answers

What defines the concept of embodied cognition in relation to sensation?

<p>Sensations can direct cognitive processes. (B)</p> Signup and view all the answers

Which statement reflects the role of pain in social connections?

<p>Pain fosters empathy and social bonding. (B)</p> Signup and view all the answers

What factor is emphasized in how people recall their pain experiences?

<p>The peak moment of pain (B)</p> Signup and view all the answers

Which treatment method is mentioned as being used by physicians to help patients remember a procedure as less painful?

<p>Tapering down pain intensity before it ends (D)</p> Signup and view all the answers

How does the perception of pain change based on social situations according to the research?

<p>It tends to increase when others show pain (C)</p> Signup and view all the answers

What are endorphins known to do in response to pain or exercise?

<p>Act as natural painkillers (D)</p> Signup and view all the answers

What role does belief in a placebo have on pain perception?

<p>It can trigger the body to release endorphins (D)</p> Signup and view all the answers

In the context of pain control therapies, which of the following is NOT mentioned as a method?

<p>Hypnosis (A)</p> Signup and view all the answers

What is one of the findings of the study comparing sham acupuncture to placebo pills?

<p>Both treatments resulted in similar outcomes with fake acupuncture slightly better (D)</p> Signup and view all the answers

According to the content, what common factor influences the experience of pain among individuals?

<p>Cultural expectations (B)</p> Signup and view all the answers

What happens to brain activity when someone feels empathy for another person's pain?

<p>It mirrors the brain activity of the person in pain (D)</p> Signup and view all the answers

Which method of distraction mentioned has been shown to reduce brain's pain-related activity?

<p>Virtual reality immersion (B)</p> Signup and view all the answers

What effect does attention distraction have during painful procedures?

<p>It activates brain pathways that inhibit pain (B)</p> Signup and view all the answers

What is the result of prolonged discomfort at the end of a painful experience compared to an abrupt end?

<p>It can result in a better overall pain recall (C)</p> Signup and view all the answers

Which genetic factor is mentioned in relation to pain tolerance?

<p>A gene that enhances the release of endorphins (A)</p> Signup and view all the answers

What is the significance of umami taste?

<p>It signals proteins necessary for growth. (B)</p> Signup and view all the answers

How do taste receptors react to food stimuli?

<p>They can be triggered by brief contact with food molecules. (A)</p> Signup and view all the answers

What influence does early taste exposure have on food preferences?

<p>It shapes preferences based on exposure to flavors. (B)</p> Signup and view all the answers

What role does distraction play in managing pain for burn victims?

<p>It reduces pain perception by shifting focus away. (B)</p> Signup and view all the answers

How do the number of taste buds change with age?

<p>The number of taste buds decreases with age. (B)</p> Signup and view all the answers

Which factor can influence taste preferences according to expectations?

<p>The price labeled on the food item. (C)</p> Signup and view all the answers

What is anosmia?

<p>Inability to smell. (C)</p> Signup and view all the answers

What differentiates supertasters from others?

<p>They possess more taste buds, allowing for intense flavor experiences. (C)</p> Signup and view all the answers

Which taste is primarily associated with energy sources?

<p>Sweet (A)</p> Signup and view all the answers

What occurs when children are repeatedly exposed to disliked foods?

<p>They can begin to accept the foods over time. (D)</p> Signup and view all the answers

Where do smell molecules first interact with receptors?

<p>In the nasal cavity. (A)</p> Signup and view all the answers

What is a primary function of the olfactory receptors?

<p>To detect aroma molecules in the air. (C)</p> Signup and view all the answers

What happens when someone with anosmia tries to eat?

<p>Food tastes bland and difficult to swallow. (D)</p> Signup and view all the answers

What is kinesthesia primarily responsible for in our body?

<p>Sensing the position and movement of body parts (A)</p> Signup and view all the answers

What happens to your body when you lose your sense of kinesthesia?

<p>You may feel disembodied and struggle to control movements. (B)</p> Signup and view all the answers

Which structures in the inner ear are primarily responsible for maintaining balance?

<p>Semicircular canals and vestibular sacs (D)</p> Signup and view all the answers

How does sensory interaction influence our taste perception?

<p>Through the combination of smell, texture, and taste (C)</p> Signup and view all the answers

What common experience illustrates the effect of the vestibular system on vision?

<p>Experiencing blurred vision when moving your head quickly. (C)</p> Signup and view all the answers

What can happen if the proprioceptive feedback system is not functioning properly?

<p>Difficulty in assessing body position and movement. (C)</p> Signup and view all the answers

What role does the cerebellum play in balance and body movement?

<p>Monitoring and adjusting body position. (B)</p> Signup and view all the answers

What physiological components are involved in the kinesthetic sense?

<p>Sensors in muscles, tendons, and joints. (C)</p> Signup and view all the answers

How does smell influence taste according to the content?

<p>It enhances the perception of sweetness. (A)</p> Signup and view all the answers

What effect does closing one’s eyes while standing have on balance?

<p>It often leads to wobbling or loss of balance. (B)</p> Signup and view all the answers

What phenomenon occurs when you twirl and then suddenly stop?

<p>Continued sensation of spinning. (C)</p> Signup and view all the answers

How do sensory systems work together to create perceptions?

<p>Senses eavesdrop and integrate their inputs. (A)</p> Signup and view all the answers

What allows our vision to be more effective when paired with sound?

<p>It heightens our awareness of visual stimuli. (A)</p> Signup and view all the answers

What is the significance of olfactory neurons bypassing the thalamus?

<p>They can process smells faster than other senses. (B)</p> Signup and view all the answers

How do odors trigger different patterns of receptor activation?

<p>Odors combine in specific patterns across receptors. (A)</p> Signup and view all the answers

Which of the following statements about human olfactory receptors is accurate?

<p>Humans have fewer olfactory receptors than dogs. (A)</p> Signup and view all the answers

What role do pheromones play in animal behavior?

<p>They influence migratory patterns in animals. (B)</p> Signup and view all the answers

What is one reason people might have different reactions to the same odor?

<p>Cultural experiences shape odor perceptions. (A)</p> Signup and view all the answers

Which group is likely to have the keenest sense of smell?

<p>Women and young adults (A)</p> Signup and view all the answers

How does the sense of smell contribute to human memory?

<p>There is a direct connection between olfactory input and the limbic system. (C)</p> Signup and view all the answers

What happens to the sense of smell as people age?

<p>It tends to gradually decline. (A)</p> Signup and view all the answers

Which of the following best describes how odors can affect a person's mood or judgment?

<p>Certain smells can evoke positive or negative emotions. (B)</p> Signup and view all the answers

What did Linda Buck and Richard Axel's research reveal?

<p>Combinations of receptors help us detect a wide variety of odors. (D)</p> Signup and view all the answers

Why might humans struggle to describe smells compared to sounds or sights?

<p>Humans are better at naming sounds than smells. (D)</p> Signup and view all the answers

How are different odors compared to letters in the alphabet?

<p>Both can combine in patterns to create a variety of signals. (B)</p> Signup and view all the answers

Which of the following scenarios is an example of olfactory communication in animals?

<p>Moths are attracted to floral scents. (B)</p> Signup and view all the answers

Why do returning salmon seek streams spiked with familiar odors?

<p>Olfactory cues guide them to their home stream. (C)</p> Signup and view all the answers

Which option represents the best example of absolute threshold?

<p>A cook can just barely taste the small amount of salt she has added to her soup. (D)</p> Signup and view all the answers

What phenomenon explains the perception of a smooth picture at the movies despite the film being made of separate pictures?

<p>Stroboscopic movement (D)</p> Signup and view all the answers

Which sensory process are the hammer, anvil, and stirrup primarily involved in?

<p>Transmitting sound waves to the cochlea (C)</p> Signup and view all the answers

What describes the process that Gestalt psychologists would be interested in?

<p>How an organized whole is formed out of its component pieces (A)</p> Signup and view all the answers

Which depth cue explains why lines of the road appear to converge in the distance?

<p>Linear perspective (B)</p> Signup and view all the answers

What does top-down processing involve?

<p>The effect that our experiences and expectations have on perception (D)</p> Signup and view all the answers

Which of the following best illustrates sensory interaction?

<p>Noticing a slight flicker of light accompanied by a sound. (D)</p> Signup and view all the answers

Which phenomenon explains why someone sees a red, white, and blue flag after looking at a colored image?

<p>Opponent-process theory (B)</p> Signup and view all the answers

What phenomenon occurs when conflicting sensory inputs lead to the perception of a different sound?

<p>The McGurk effect (A)</p> Signup and view all the answers

What best describes embodied cognition?

<p>The integration of bodily sensations with cognitive processes (B)</p> Signup and view all the answers

What results might occur from a disruption of your vestibular sense?

<p>Dizziness and loss of balance. (A)</p> Signup and view all the answers

In which condition do kinesthetic and vestibular receptors interact most clearly?

<p>Detecting changes in body position (B)</p> Signup and view all the answers

Which option represents a monocular cue that helps to understand size perception?

<p>Relative size (B)</p> Signup and view all the answers

Which of the following describes precognition as believed by some individuals?

<p>Ability to see future outcomes before they occur. (A)</p> Signup and view all the answers

Which of the following illustrates a common effect of social warmth on perception?

<p>Rating a person more positively after experiencing warmth (A)</p> Signup and view all the answers

What is the purpose of the 'gate' in the gate-control theory of pain?

<p>To selectively block or allow pain signals to reach the brain (D)</p> Signup and view all the answers

What is likely to be damaged in airport ground workers due to repeated exposure to loud noise?

<p>Cochlea (B)</p> Signup and view all the answers

How does a ballerina utilize her vestibular sense during a performance?

<p>To maintain balance while performing spins and leaps. (C)</p> Signup and view all the answers

Which statement about synesthesia is true?

<p>It is characterized by a conflation of sensory experiences (C)</p> Signup and view all the answers

How do bottom-up sensations and top-down processes interact in pain perception?

<p>Psychological factors can modify the experience of pain (C)</p> Signup and view all the answers

What effect does holding a warm drink have on social judgments?

<p>Increases likelihood of perceiving others as warmer individuals (A)</p> Signup and view all the answers

What is a key characteristic of the sensory systems outlined?

<p>Each sensory system has specialized receptors and brain areas (A)</p> Signup and view all the answers

Which of these sensations is NOT typically associated with the sense of touch?

<p>Brightness (D)</p> Signup and view all the answers

What role does neural connectivity play in synesthesia?

<p>It creates arbitrary associations among the senses (D)</p> Signup and view all the answers

What aspect do all sensory systems share in their function?

<p>They have dedicated receptors for specific types of stimuli (B)</p> Signup and view all the answers

Which method is known to help manage the perception of pain as per the biopsychosocial perspective?

<p>Distraction techniques (D)</p> Signup and view all the answers

Which of the following is a consequence of experiencing social exclusion?

<p>Diminished perception of temperature (C)</p> Signup and view all the answers

Which term describes the process of converting physical stimuli into neural signals?

<p>Transduction (C)</p> Signup and view all the answers

What part of the brain is primarily responsible for processing visual information?

<p>Occipital lobe (B)</p> Signup and view all the answers

In the context of reading, what aids in the brain's interpretation of complex images and scenes?

<p>Feature detectors (B)</p> Signup and view all the answers

What is the concept that suggests our experiences and expectations influence our perceptions?

<p>Perceptual set (C)</p> Signup and view all the answers

What is the primary function of the olfactory receptor cells in humans?

<p>To interpret odor molecules and send signals to the brain (C)</p> Signup and view all the answers

How would you define consciousness in relation to psychology?

<p>Our subjective awareness of ourselves and our environment (C)</p> Signup and view all the answers

Which sense primarily relies on chemical receptors for detection?

<p>Taste (A)</p> Signup and view all the answers

What does kinesthesia primarily help an individual to sense?

<p>The movement and positioning of body parts (D)</p> Signup and view all the answers

What was a primary focus of psychologists during the early 20th century regarding consciousness?

<p>To describe and explain states of consciousness (A)</p> Signup and view all the answers

How do placebos affect the perception of pain according to the given content?

<p>They diminish the central nervous system's response to pain. (B)</p> Signup and view all the answers

What term best describes the state of awareness when one is sleeping or dreaming?

<p>Altered state of consciousness (A)</p> Signup and view all the answers

Which phenomenon suggests that unconscious processes can influence behavior?

<p>Unconscious bias (A)</p> Signup and view all the answers

Which brain structure is primarily involved in transmitting olfactory signals?

<p>Olfactory bulb (A)</p> Signup and view all the answers

What phenomenon does sensory interaction refer to?

<p>The way one sense can influence another and shape perception. (B)</p> Signup and view all the answers

What concept explains why individuals can perform tasks automatically after practice?

<p>Automaticity (A)</p> Signup and view all the answers

Which of the following states is NOT considered an altered state of consciousness?

<p>Normal waking awareness (C)</p> Signup and view all the answers

Which of the following best describes the role of the vestibular sense?

<p>Monitoring body position and helping maintain balance (A)</p> Signup and view all the answers

What is the unique characteristic of the receptors related to the sense of smell?

<p>There are around 350 different types of receptors. (A)</p> Signup and view all the answers

Which psychologist commented on the illusion of conscious will during dual-control experiments?

<p>Daniel Wegner (A)</p> Signup and view all the answers

Which condition exemplifies embodied cognition?

<p>A person remembering a taste associated with a particular dish (D)</p> Signup and view all the answers

Which theory proposes that consciousness operates at two levels, both conscious and unconscious?

<p>Dual processing theory (B)</p> Signup and view all the answers

What role do neurons called rods play in vision?

<p>Detecting movement in low light (A)</p> Signup and view all the answers

What type of sensation does the theory of gate control primarily address?

<p>Pain sensations transmitted from body to brain (D)</p> Signup and view all the answers

How are the five basic taste sensations categorized?

<p>Salt, sweet, sour, umami, bitter (D)</p> Signup and view all the answers

What is a common psychological element used in pain treatments?

<p>Use of distraction techniques (D)</p> Signup and view all the answers

Which factor is essential for the taste perception process according to the content?

<p>Information from taste receptor cells interacting with aromas (A)</p> Signup and view all the answers

Which area of the brain processes incoming olfactory signals?

<p>Olfactory bulb (D)</p> Signup and view all the answers

What is the role of nociceptors in the experience of pain?

<p>They detect potentially damaging stimuli and send signals to the spinal cord. (A)</p> Signup and view all the answers

How does gate-control theory explain the perception of pain?

<p>It proposes that large fiber activity can close the pain signal gate. (A)</p> Signup and view all the answers

What observation was made about pain sensitivity between genders?

<p>Women are more sensitive to pain than men. (C)</p> Signup and view all the answers

What phenomenon can occur in individuals with amputated limbs?

<p>They may experience sensations such as pain in non-existent limbs. (B)</p> Signup and view all the answers

What impact can mental distraction have on the perception of pain?

<p>It can reduce the perception of pain during anactivity. (B)</p> Signup and view all the answers

What is a notable trait of Ashlyn Blocker regarding pain?

<p>She has a genetic mutation that prevents her from feeling pain. (C)</p> Signup and view all the answers

Which of the following statements about chronic pain is true?

<p>It can be influenced by biological, psychological, and social factors. (C)</p> Signup and view all the answers

What can happen to our memory of pain after experiencing a painful event?

<p>We often forget the duration and intensity of the pain. (A)</p> Signup and view all the answers

How does the brain contribute to the perception of pain?

<p>It can interpret signals even without proper sensory input. (B)</p> Signup and view all the answers

What is the effect of large fiber activity on pain perception according to gate-control theory?

<p>It can block the transmission of pain signals to the brain. (C)</p> Signup and view all the answers

What could phantom sensations imply about pain perception?

<p>The brain may misinterpret signals in the absence of normal sensory input. (D)</p> Signup and view all the answers

Why might athletes tolerate pain better than non-athletes?

<p>Their focus on performance can distract them from pain. (A)</p> Signup and view all the answers

What explains why no single pain theory can account for all findings regarding pain?

<p>It is influenced by complex biopsychosocial factors. (A)</p> Signup and view all the answers

Which of the following describes the phenomenon of tinnitus?

<p>A sensation of ringing in the ears without external sound. (C)</p> Signup and view all the answers

What is the primary role of the unconscious according to Freud?

<p>To hide anxiety-provoking thoughts (B)</p> Signup and view all the answers

What is hypnosis primarily described as?

<p>A social interaction (C)</p> Signup and view all the answers

How might a hypnotized subject respond to the suggestion of their eyelids being shut tightly?

<p>They may feel compelled to obey the suggestion (A)</p> Signup and view all the answers

Which statement best describes the two-track mind concept in hypnosis?

<p>One track operates unconsciously and the other consciously (B)</p> Signup and view all the answers

What is a common response a subject might have to a suggestion during hypnosis?

<p>Experiencing phantom sensations (B)</p> Signup and view all the answers

What is the purpose of the hypnotist's initial instructions during a session?

<p>To induce a state of relaxation (C)</p> Signup and view all the answers

Which of the following is a characteristic of the unconscious mind, as per contemporary psychology?

<p>It operates without awareness (D)</p> Signup and view all the answers

What might happen if a hypnotized subject is told they cannot recall the number 6 while counting?

<p>They may exhibit confusion and count incorrectly (C)</p> Signup and view all the answers

How does the suggestion to perceive a non-existent object manifest in a hypnotized subject?

<p>The subject fully believes the object is absent (A)</p> Signup and view all the answers

What do psychologists suggest about the nature of hypnosis as a state of consciousness?

<p>It is widely accepted as an altered state (D)</p> Signup and view all the answers

Which of the following best explains the influence of the hypnotist on their subject?

<p>They can suggest changes in perceptions and behaviors (C)</p> Signup and view all the answers

What happens to the subject's physical experience during hypnosis as per common observations?

<p>They may feel heavy or immobile according to suggestions (A)</p> Signup and view all the answers

In what way can hypnotic suggestions influence memory related to events?

<p>They can confuse and distort recollections (A)</p> Signup and view all the answers

What significant shift occurred in psychology's focus regarding consciousness during the 20th century?

<p>Psychologists dismissed consciousness in favor of behavior observation. (B)</p> Signup and view all the answers

How is hypnosis defined in the content provided?

<p>A social interaction involving suggestions that lead to spontaneous perceptions. (C)</p> Signup and view all the answers

What does the concept of 'stream of consciousness' refer to in psychology?

<p>An uninterrupted flow of awareness and thoughts over time. (B)</p> Signup and view all the answers

Which of the following best describes the dual processing of the mind?

<p>Both conscious and unconscious processes contribute to information processing. (C)</p> Signup and view all the answers

What does modern psychology’s view on the unconscious differ from Freud’s perspective?

<p>Most psychologists see the unconscious as a non-aware process. (D)</p> Signup and view all the answers

What is one way a hypnotist can influence a hypnotized subject?

<p>By suggesting perceptions that the subject can unconsciously accept. (C)</p> Signup and view all the answers

Which phrase best captures the importance of consciousness in psychology's history?

<p>Consciousness became a secondary concern to behaviorism. (B)</p> Signup and view all the answers

What aspect of consciousness does the content highlight as affecting daily experiences?

<p>Consciousness includes automatic processes that impact actions. (A)</p> Signup and view all the answers

When might altered states of consciousness occur?

<p>Through practices like meditation, drug use, and daydreaming. (B)</p> Signup and view all the answers

How did consciousness relate to psychology's definition in the 1960s?

<p>Psychology began defining itself solely as the science of behavior. (A)</p> Signup and view all the answers

What can be a result of a hypnotized subject experiencing suggested phenomena?

<p>They become unable to distinguish between reality and suggestion. (A)</p> Signup and view all the answers

What can an understanding of consciousness help explain about daydreaming?

<p>Daydreaming illustrates the interplay between conscious and unconscious thought. (A)</p> Signup and view all the answers

Which of the following best describes modern psychology’s approach to consciousness?

<p>Psychologists now recognize both conscious and unconscious influences. (B)</p> Signup and view all the answers

What role does suggestion play in the experience of hypnosis?

<p>Suggestions are crucial for the subject's experience and perceptions. (D)</p> Signup and view all the answers

Which phrase best describes top-down processing?

<p>Influence of experiences on perception (A)</p> Signup and view all the answers

What phenomenon do Meghan's friends attribute to her ability to foresee outcomes?

<p>Precognition (D)</p> Signup and view all the answers

What monocular cue helps Elaine understand that her friend further down the hallway appears smaller?

<p>Linear perspective (C)</p> Signup and view all the answers

What part of the auditory system is primarily affected by loud noise exposure?

<p>Cochlea (A)</p> Signup and view all the answers

What is the best example of sensory interaction?

<p>Combination of warm and cold sensations (A)</p> Signup and view all the answers

Why might you see a red, white, and blue flag after looking at a yellow, black, and green flag?

<p>Opponent-process theory process (B)</p> Signup and view all the answers

What is the primary function of the vestibular sense in a dancer?

<p>Detecting body position and balance (D)</p> Signup and view all the answers

Which concept explains the misjudgment of distance by Ester when chasing her roommate?

<p>Binocular cues (B)</p> Signup and view all the answers

What is the first step in the process of perceiving written words?

<p>Transduction of light into neural signals (D)</p> Signup and view all the answers

What role do rods play in visual perception?

<p>Light level sensitivity (C)</p> Signup and view all the answers

Which part of the brain is primarily involved in processing visual information?

<p>Occipital lobe (C)</p> Signup and view all the answers

In the context of performance, what aspect is crucial for a ballerina to maintain timing?

<p>Kinesthetic sense monitoring (D)</p> Signup and view all the answers

Which phenomenon occurs when consciousness appears to be split during actions?

<p>Illusion of conscious will (C)</p> Signup and view all the answers

What does feature detection refer to in visual processing?

<p>Recognition of basic visual elements (A)</p> Signup and view all the answers

What is the primary factor that allows hypnotists to influence subjects during hypnosis?

<p>The subjects' openness to suggestion (A)</p> Signup and view all the answers

Which of the following best describes highly hypnotizable individuals?

<p>They become deeply absorbed in imaginative activities (C)</p> Signup and view all the answers

What misconception do most people have about hypnosis and memory recall?

<p>All events can be recalled through hypnosis (D)</p> Signup and view all the answers

What aspect of memory research contradicts the belief about hypnosis enhancing recall?

<p>Only a portion of experiences are permanently stored in our brains (D)</p> Signup and view all the answers

Which of the following statements is true about the Stanford Hypnotic Susceptibility Scale?

<p>It assesses the response to physical suggestions like swaying (C)</p> Signup and view all the answers

What unique brain activity is observed in individuals under hypnosis?

<p>Altered brain activity patterns (C)</p> Signup and view all the answers

How does the belief in hypnosis as a 'truth serum' affect its perception?

<p>It leads to considerable conflict in legal contexts (C)</p> Signup and view all the answers

What is a common outcome of ‘hypnotically refreshed’ memories?

<p>They often mix fact with fiction (C)</p> Signup and view all the answers

What factor has contributed to the unreliability of eyewitness testimony obtained under hypnosis?

<p>Subjects' predisposition to believe in hypnosis (D)</p> Signup and view all the answers

What aspect of hypnosis has been shown to inhibit pain-related brain activity?

<p>Heightened suggestibility (B)</p> Signup and view all the answers

In a study comparing hypnotized individuals to those pretending to be hypnotized, what was a notable finding?

<p>Both groups acted with equal compliance (B)</p> Signup and view all the answers

What therapeutic use has hypnosis been found particularly effective for?

<p>Relief of chronic pain (A)</p> Signup and view all the answers

What is a common misconception about the effects of hypnosis?

<p>Hypnosis grants the hypnotist control over the subject (A)</p> Signup and view all the answers

What does research suggest about the combination of hypnosis with other pain relief methods?

<p>It maximizes pain relief effectiveness (C)</p> Signup and view all the answers

What is one condition where hypnosis has not shown favorable results?

<p>Smoking cessation (C)</p> Signup and view all the answers

Which of the following statements best reflects the nature of hypnosis as a social phenomenon?

<p>It reflects normal consciousness and social influence (A)</p> Signup and view all the answers

What have courts in America, Australia, and Britain generally ruled regarding hypnotically obtained testimony?

<p>It is not admissible due to unreliability (A)</p> Signup and view all the answers

How do posthypnotic suggestions work in therapy?

<p>They trigger behaviors after hypnosis has ended (B)</p> Signup and view all the answers

What percentage of individuals can experience significant pain relief through hypnosis?

<p>About 50% of individuals (D)</p> Signup and view all the answers

In surgical contexts, how has hypnosis been used effectively?

<p>To reduce the need for pain medications (B)</p> Signup and view all the answers

What psychological effect does a trustworthy hypnotist have on a subject?

<p>It fosters greater compliance to suggestions (D)</p> Signup and view all the answers

What is the main argument presented by Hilgard regarding hypnosis?

<p>Hypnosis involves a state of divided consciousness. (A)</p> Signup and view all the answers

Which factor does NOT contribute to the effectiveness of hypnosis according to the content?

<p>The presence of multiple observers. (A)</p> Signup and view all the answers

How do deeply hypnotized individuals respond to conflicting stimuli, according to research?

<p>They perceive irrelevant information as gibberish. (D)</p> Signup and view all the answers

What concept is described as a split in consciousness allowing simultaneous thoughts and behaviors?

<p>Dissociation. (A)</p> Signup and view all the answers

What experimental evidence supports the idea that hypnosis involves dissociation?

<p>Subjects not feeling pain while submerged in ice water. (A)</p> Signup and view all the answers

Researchers suggest that hypnosis primarily facilitates which psychological process?

<p>Selective attention reduction. (C)</p> Signup and view all the answers

Which brain region's activity is shown to reduce during hypnosis in relation to pain processing?

<p>Frontal lobe. (C)</p> Signup and view all the answers

What does the Stroop effect illustrate about cognitive processes?

<p>Conflicts between automatic and controlled processing. (A)</p> Signup and view all the answers

What does the term 'hidden observer' refer to in the context of hypnosis?

<p>A part of the mind that remains aware during hypnosis. (B)</p> Signup and view all the answers

Which statement best describes the interaction between consciousness and behavior in hypnosis?

<p>Hypnosis creates a parallel awareness that controls behavior. (A)</p> Signup and view all the answers

How has the perspective on consciousness changed in psychology since the 1960s?

<p>It has regained importance due to cognitive psychology and neuroscience. (D)</p> Signup and view all the answers

What common misconception do social influence theorists have regarding hypnosis?

<p>It is solely based on the potency of suggestion. (D)</p> Signup and view all the answers

In what way may hypnosis provide pain relief?

<p>By altering the perception of pain without blocking it. (D)</p> Signup and view all the answers

What is one of the controversial aspects regarding hypnosis as discussed in the content?

<p>Its dissociation theory challenges the necessity of conscious awareness. (C)</p> Signup and view all the answers

Which of the following best describes the perspective of psychologists who view hypnosis as a dissociation?

<p>It involves a separation of sensations and conscious awareness. (A)</p> Signup and view all the answers

What is the primary role of selective attention in the context of hypnosis?

<p>To ignore irrelevant stimuli while focusing on specific suggestions. (C)</p> Signup and view all the answers

How does the circadian rhythm influence our daily functioning?

<p>By coordinating sleep cycles with environmental changes. (D)</p> Signup and view all the answers

Which of the following is a characteristic of sleep, as described in the content?

<p>It can include some background processing of information. (C)</p> Signup and view all the answers

What phenomenon might occur if a person dreams of an activity according to the provided content?

<p>Their limbs will move in sync with the dream. (D)</p> Signup and view all the answers

What is a posthypnotic suggestion used for?

<p>To influence future behavior after the hypnosis session. (A)</p> Signup and view all the answers

Which statement about sleep experts' recommendations is true?

<p>They recommend therapy and behavioral approaches over medication. (B)</p> Signup and view all the answers

What does the term 'dissociation' refer to in the study of consciousness?

<p>A division between conscious awareness and sensory input. (A)</p> Signup and view all the answers

Which biological rhythm correlates to sleep stages?

<p>Ultradian rhythm. (B)</p> Signup and view all the answers

During sleep, what aspect can still respond to external stimuli?

<p>The brain's auditory cortex. (D)</p> Signup and view all the answers

Which of the following is NOT a recognized function of sleep?

<p>Facilitating muscle growth. (D)</p> Signup and view all the answers

What best describes the effect of sleep on the body's biological processes?

<p>It regulates biological rhythms like temperature and hormone levels. (B)</p> Signup and view all the answers

What commonly occurs when people undergo hypnosis according to the theories mentioned?

<p>They follow suggestions from the hypnotist. (A)</p> Signup and view all the answers

What indicates a peak in circadian arousal throughout the day?

<p>Improved thinking and memory performance. (C)</p> Signup and view all the answers

What is circadian rhythm primarily associated with?

<p>Regular bodily rhythms on a 24-hour cycle (C)</p> Signup and view all the answers

How do circadian rhythms change as individuals age?

<p>They shift from evening-oriented to morning-oriented (B)</p> Signup and view all the answers

What type of sleep is rapid eye movement (REM) sleep also known as?

<p>Paradoxical sleep (D)</p> Signup and view all the answers

What induces the sensation of falling during the transition to sleep?

<p>Hypnagogic sensations (C)</p> Signup and view all the answers

What are alpha waves indicative of in terms of brain activity?

<p>Relaxed but awake state (B)</p> Signup and view all the answers

What discovery did Eugene Aserinsky contribute to the understanding of sleep?

<p>The occurrence of REM sleep and its characteristics (D)</p> Signup and view all the answers

How does performance vary between morning types and evening types?

<p>Morning types have higher initiative and punctuality (D)</p> Signup and view all the answers

During what stage of sleep do most vivid dreams occur?

<p>REM sleep (A)</p> Signup and view all the answers

What can happen to the circadian rhythm of women as they transition to menopause?

<p>They shift towards morning orientation (A)</p> Signup and view all the answers

What is the total duration of a complete sleep cycle in humans?

<p>90 minutes (A)</p> Signup and view all the answers

What is one of the primary reasons sleep is important for the brain?

<p>Enables detoxification processes (C)</p> Signup and view all the answers

What does NREM sleep encompass?

<p>All sleep stages except for REM sleep (D)</p> Signup and view all the answers

What is a common physiological reaction when a person yawns?

<p>Stretching of neck muscles and increase in heart rate (B)</p> Signup and view all the answers

What role does sleep play in preventing depression according to the content?

<p>Less vulnerability observed in morning types (D)</p> Signup and view all the answers

What type of brain waves are produced during deep sleep (NREM-3)?

<p>Delta waves (A)</p> Signup and view all the answers

What happens to muscle activity during REM sleep?

<p>Muscles are relaxed and mostly paralyzed (A)</p> Signup and view all the answers

How does REM sleep generally change throughout the night?

<p>It increases in duration with each cycle (B)</p> Signup and view all the answers

What is a common misconception regarding the cycle of sleep stages?

<p>REM sleep follows NREM-2 directly (D)</p> Signup and view all the answers

What is the role of sleep spindles during NREM-2 sleep?

<p>They aid in memory consolidation (C)</p> Signup and view all the answers

During sleep, why might some individuals experience hallucinations?

<p>Due to false sensory experiences during hypnagogic sensations (D)</p> Signup and view all the answers

What physiological change occurs during REM sleep?

<p>Heart rate and breathing become rapid and irregular (A)</p> Signup and view all the answers

Which of the following is NOT a characteristic of REM sleep?

<p>Snoring increases (A)</p> Signup and view all the answers

What role does the suprachiasmatic nucleus (SCN) play in sleep regulation?

<p>It helps monitor the brain's release of melatonin. (C)</p> Signup and view all the answers

How does artificial light impact sleep patterns?

<p>It delays the onset of sleep. (C)</p> Signup and view all the answers

What percentage of an average night’s sleep is typically spent in REM sleep?

<p>20-25% (A)</p> Signup and view all the answers

What is one biological impact of night-shift work?

<p>Higher likelihood of developing heart disease. (B)</p> Signup and view all the answers

What is one possible outcome of sleep paralysis when waking from REM sleep?

<p>Inability to move temporarily (A)</p> Signup and view all the answers

What misconception might people have about the sleep needs of individuals?

<p>Adults require a fixed 8 hours of sleep (A)</p> Signup and view all the answers

Why might young adults experience a sleep cycle closer to a 25-hour day?

<p>Because of technological distractions. (C)</p> Signup and view all the answers

How do sleep experiences differ between older adults and younger individuals?

<p>Awakenings are more common among older adults (D)</p> Signup and view all the answers

What function does sleep serve according to psychological research?

<p>It protects against environmental changes. (B)</p> Signup and view all the answers

How does sleep help in memory consolidation?

<p>By replaying recent learning experiences. (B)</p> Signup and view all the answers

Which statement about communal sleeping is accurate?

<p>It enhances safety through shared vigilance (B)</p> Signup and view all the answers

What is a possible consequence of irregular sleep patterns, such as those experienced by students?

<p>Social jet lag. (C)</p> Signup and view all the answers

What occurs during the transition from NREM-3 to the next sleep phase?

<p>Eyes begin to dart as in REM sleep (A)</p> Signup and view all the answers

What does sleep primarily provide in terms of physical health?

<p>Cell repair and immune system restoration. (B)</p> Signup and view all the answers

What does a study of Major League Baseball games reveal about biological rhythms?

<p>Teams crossing time zones typically lose their first game. (C)</p> Signup and view all the answers

Which of the following best describes how bright light affects the SCN?

<p>It suppresses melatonin production. (D)</p> Signup and view all the answers

What is a characteristic of sleep in animals with high predation susceptibility?

<p>They sleep less amidst danger. (C)</p> Signup and view all the answers

How does the pineal gland respond to signals from the SCN?

<p>It decreases melatonin production during the day. (D)</p> Signup and view all the answers

What term describes the adjustment one experiences when traveling across time zones?

<p>Social jet lag. (C)</p> Signup and view all the answers

Which statement reflects the ecological niche concept in relation to sleep patterns?

<p>Species' sleep patterns typically reflect their survival needs. (B)</p> Signup and view all the answers

What is one of the functions of sleep in memory processing?

<p>It consolidates memories by replaying recent learning. (C)</p> Signup and view all the answers

During which stage of sleep does the pituitary gland secrete human growth hormone?

<p>NREM-3 (B)</p> Signup and view all the answers

What sensation is commonly experienced by individuals shortly after falling asleep?

<p>Hypnagogic sensation of falling (B)</p> Signup and view all the answers

What is a circadian rhythm?

<p>The sleep-wake cycle occurring on a roughly 24-hour schedule. (A)</p> Signup and view all the answers

Which theory of sleep best explains the benefits experienced by athletes after a full night’s rest?

<p>Growth and repair (B)</p> Signup and view all the answers

Which of the following brain waves are present during a relaxed, awake state?

<p>Alpha waves (B)</p> Signup and view all the answers

How does sleep loss typically affect individuals?

<p>Leads to feeling drained and decreased well-being. (D)</p> Signup and view all the answers

What phenomenon commonly related to sleep deprivation can be observed in students?

<p>Interpersonal conflicts. (A)</p> Signup and view all the answers

Which statement about sleep debt is accurate?

<p>It accumulates and affects mood and performance over time. (C)</p> Signup and view all the answers

What happens to many adults who are able to sleep without restrictions?

<p>They tend to feel energized and happier. (C)</p> Signup and view all the answers

Which of the following statements about sleep and mood is true?

<p>Sleep aids in maintaining emotional stability. (D)</p> Signup and view all the answers

Patrick is likely to experience which of the following upon entering REM sleep?

<p>Body paralysis. (B)</p> Signup and view all the answers

How long does the average adult typically sleep if allowed unrestricted sleep?

<p>7.5 to 9 hours. (C)</p> Signup and view all the answers

What is the primary effect of sleep deprivation on academic performance in students?

<p>Decreased alertness and cognitive function. (D)</p> Signup and view all the answers

What role does sleep play in memory consolidation?

<p>It enables the transfer of memories from the hippocampus to the cortex. (C)</p> Signup and view all the answers

How does sleep enhance problem-solving abilities?

<p>By allowing insights to surface more clearly after sleep. (B)</p> Signup and view all the answers

What happens during slow-wave sleep in relation to physical growth?

<p>The body releases human growth hormone crucial for muscle development. (A)</p> Signup and view all the answers

What is the effect of sleep deprivation on athletic performance?

<p>It worsens overall athletic performance. (B)</p> Signup and view all the answers

How do biological rhythms affect sleep patterns?

<p>They synchronize with the 24-hour cycle influencing sleep-wake cycles. (A)</p> Signup and view all the answers

What distinguishes REM sleep from NREM sleep?

<p>Only REM sleep involves significant dreaming. (D)</p> Signup and view all the answers

Why is a good night's sleep important for creative thinking?

<p>It helps the brain form new connections and insights. (C)</p> Signup and view all the answers

What effect does sleep have on older adults' memory?

<p>Good sleep can significantly improve recollection of recent information. (C)</p> Signup and view all the answers

What is the primary function of sleep concerning neuron health?

<p>It helps restore and repair damaged neurons. (D)</p> Signup and view all the answers

How does sleep deprivation impact cognitive abilities?

<p>It deteriorates memory and overall cognitive function. (C)</p> Signup and view all the answers

What happens during NREM-2 sleep?

<p>It features bursts of brain activity, marking a transition into deeper sleep stages. (D)</p> Signup and view all the answers

What is a recommended sleep duration for optimal athletic training?

<p>8 to 10 hours nightly. (D)</p> Signup and view all the answers

What is sleep's role in preserving emotional health?

<p>It aids in the processing and regulation of emotions. (A)</p> Signup and view all the answers

What is one common consequence of sleep deprivation according to the research?

<p>Increased risk of depression (A)</p> Signup and view all the answers

Which of the following sleep durations is linked to a higher risk of depression?

<p>5 hours or fewer (A)</p> Signup and view all the answers

What does the research suggest about the effects of sleep on physical health?

<p>Lack of sleep can suppress immune response (B)</p> Signup and view all the answers

How does sleep deprivation affect hormone levels related to hunger?

<p>Increases ghrelin and decreases leptin (B)</p> Signup and view all the answers

According to Maas, what strategy can help assess an individual's sleep needs?

<p>Going to bed 15 minutes earlier each night (B)</p> Signup and view all the answers

What negative effect does smartphone use have on sleep?

<p>Distracts users from falling asleep (B)</p> Signup and view all the answers

Why might delayed school start times benefit adolescents?

<p>Allows for optimal levels of sleep (A)</p> Signup and view all the answers

What is one consequence of chronic sleep deprivation as mentioned?

<p>Slowed reaction times (A)</p> Signup and view all the answers

What percentage of Americans reported getting 6 hours or less sleep based on a Gallup poll?

<p>40 percent (C)</p> Signup and view all the answers

Which group of individuals tend to live longer according to the content?

<p>Older adults without sleep disturbances (A)</p> Signup and view all the answers

What is a recommended approach for teenagers to improve their sleep based on the content?

<p>Going to bed at the same time every night (A)</p> Signup and view all the answers

How does sleep deprivation influence metabolism?

<p>Decreases metabolic rate (C)</p> Signup and view all the answers

What impact did the delayed start times in high schools have on driving accidents?

<p>Decreased the number of accidents by about 25% (C)</p> Signup and view all the answers

What effect does losing an hour of sleep during the spring time change have on accident rates?

<p>Causes an increase in accidents (B)</p> Signup and view all the answers

Which statement best describes the relationship between sleep loss and weight gain?

<p>Sleep loss enhances appetite and food cravings (D)</p> Signup and view all the answers

What is a common behavioural symptom of sleep deprivation?

<p>Difficulty concentrating (C)</p> Signup and view all the answers

What is a consequence of sleep deprivation on online behavior as noted in the content?

<p>Higher rates of cyberloafing (C)</p> Signup and view all the answers

Which factor does NOT contribute to improved sleep according to the findings?

<p>Frequent exposure to screens (B)</p> Signup and view all the answers

What is one common misunderstanding regarding insomnia?

<p>Fretting about insomnia can deteriorate sleep quality. (B)</p> Signup and view all the answers

What learning consequence is noted for sleep-deprived students?

<p>Diminished productivity and increased mistakes (D)</p> Signup and view all the answers

What do studies suggest about sleeping pills and alcohol as solutions for insomnia?

<p>They can lead to tolerance. (D)</p> Signup and view all the answers

Which of the following is recommended as a natural sleep aid?

<p>Maintain a regular sleep schedule (A)</p> Signup and view all the answers

How should a person's sleeping schedule be adjusted to improve sleep quality?

<p>Add 15 minutes to sleep each night. (C)</p> Signup and view all the answers

What is one psychological benefit associated with adequate sleep?

<p>Improved mood (C)</p> Signup and view all the answers

What condition is characterized by persistent difficulty in falling or staying asleep?

<p>Insomnia (C)</p> Signup and view all the answers

What does not typically occur with temporary sleep loss?

<p>Long-term harm (B)</p> Signup and view all the answers

What is a potential behavior observed in fatigued judges after the daylight saving time shifts?

<p>Longer sentences for offenders (B)</p> Signup and view all the answers

What does the content suggest about the overall impact of sleep on longevity?

<p>Adequate sleep may contribute to longer life expectancy. (C)</p> Signup and view all the answers

What is the primary occurrence of sleepwalking during sleep stages?

<p>NREM3 sleep (C)</p> Signup and view all the answers

Which of the following best describes the majority of dreams experienced by individuals?

<p>Marked by negative events or emotions (D)</p> Signup and view all the answers

How often do night terrors occur in adults compared to children?

<p>More frequently in children (B)</p> Signup and view all the answers

What physiological changes are observed during a night terror episode in children?

<p>Doubling of heart and breathing rates (D)</p> Signup and view all the answers

Which statement about dreams and the experiences of blind individuals is true?

<p>Blind individuals use nonvisual senses in their dreams. (A)</p> Signup and view all the answers

What is a common misconception about sexual content in dreams?

<p>It occurs less frequently than expected. (C)</p> Signup and view all the answers

What factor influences the content of dreams according to recent studies?

<p>Recent daily experiences and preoccupations (A)</p> Signup and view all the answers

What was a remarkable observation regarding the impact of traumatic events on dreams?

<p>Trauma can induce nightmares that help process fears. (B)</p> Signup and view all the answers

When do sleepwalkers typically return to their beds?

<p>Spontaneously or with assistance (D)</p> Signup and view all the answers

How long do people typically spend dreaming throughout their lifetime?

<p>Six years (D)</p> Signup and view all the answers

Which of the following best differentiates nightmares from night terrors?

<p>Night terrors occur during NREM3, and nightmares occur during REM sleep. (D)</p> Signup and view all the answers

What is a notable trend regarding the prevalence of night terrors as individuals age?

<p>They become less frequent. (B)</p> Signup and view all the answers

Which statement about daydreams is accurate?

<p>They often feature familiar details from the dreamer's life. (A)</p> Signup and view all the answers

What typically happens to information experienced in the 5 minutes before falling asleep?

<p>It is usually lost from memory. (C)</p> Signup and view all the answers

According to Freud, what does the manifest content of a dream represent?

<p>The literal storyline of the dream. (A)</p> Signup and view all the answers

What memory-related issue has been linked to sleep deprivation in students?

<p>Difficulties in integrating memories effectively. (C)</p> Signup and view all the answers

What is one proposed function of dreams according to the information-processing perspective?

<p>To sift, sort, and fix the day's experiences in memory. (B)</p> Signup and view all the answers

What physiological function do some theories suggest dreams serve?

<p>Providing stimulation to develop neural pathways. (D)</p> Signup and view all the answers

What can be a consequence of heavy drinking after a period of moderate drinking?

<p>Depressed vomiting response (B)</p> Signup and view all the answers

What happens to REM sleep duration as a person ages?

<p>It decreases progressively. (A)</p> Signup and view all the answers

What element of dreams does the activation-synthesis theory focus on?

<p>The synthesis of random neural activity. (D)</p> Signup and view all the answers

What characterizes narcolepsy in individuals?

<p>Sudden attacks of overwhelming sleepiness (D)</p> Signup and view all the answers

Which of the following best describes the impact of alcohol on memory formation?

<p>It can lead to blackouts and impaired memory. (A)</p> Signup and view all the answers

Which of the following is a common symptom of sleep apnea?

<p>Temporary cessation of breathing during sleep (C)</p> Signup and view all the answers

What effect does alcohol have on self-awareness during tasks?

<p>It increases the likelihood of zoning out without realization. (A)</p> Signup and view all the answers

What is a commonly held myth about dreams concerning falling?

<p>If you dream of falling and hitting the ground, you die. (D)</p> Signup and view all the answers

How do night terrors differ from nightmares?

<p>They happen during NREM-3 sleep (D)</p> Signup and view all the answers

What was a key concern expressed by Robert Stickgold regarding students' sleep habits?

<p>High academic achievers often sacrifice sleep. (D)</p> Signup and view all the answers

How does binge drinking during adolescence affect brain development?

<p>It contributes to nerve cell death and reduces new nerve cell birth. (B)</p> Signup and view all the answers

How do brain scans confirm the relationship between REM sleep and memory?

<p>They reveal areas of the brain active during learning also active in REM sleep. (C)</p> Signup and view all the answers

What is one of the consequences of alcohol suppressing REM sleep?

<p>It disrupts memory consolidation from the day. (A)</p> Signup and view all the answers

What treatment is commonly used for sleep apnea?

<p>A CPAP machine to maintain airway openness (C)</p> Signup and view all the answers

Which statement is consistent with Freud's view of dreams?

<p>Dreams may reveal hidden desires and conflicts. (A)</p> Signup and view all the answers

What occurrence can trigger an attack in individuals with narcolepsy?

<p>Emotional stress (D)</p> Signup and view all the answers

What brain system is primarily activated during emotional dreams?

<p>Limbic system (D)</p> Signup and view all the answers

Which of the following statements about sleepwalking is true?

<p>It is common among children and usually harmless. (B)</p> Signup and view all the answers

What effect does waking someone during REM sleep have on memory consolidation?

<p>It disrupts memory consolidation. (B)</p> Signup and view all the answers

What is a known association with sleep apnea?

<p>A higher incidence in men with obesity (B)</p> Signup and view all the answers

What do studies suggest about individuals who experience sleep apnea and memory recall?

<p>They do not remember awakening experiences. (D)</p> Signup and view all the answers

Which statement best describes the relationship between dreams and cognitive development?

<p>Children’s dreams are often simple, resembling a slide show. (C)</p> Signup and view all the answers

What phenomenon occurs when individuals are deprived of REM sleep?

<p>REM rebound (D)</p> Signup and view all the answers

What effect does chronic insomnia typically produce?

<p>Dependence on sleeping pills (A)</p> Signup and view all the answers

What term best describes Freud's notion of dreams representing unconscious drives and wishes?

<p>Latent content (D)</p> Signup and view all the answers

What is a common feature of sleeptalking?

<p>It is a childhood disorder that can continue into adulthood (B)</p> Signup and view all the answers

Which dream theory suggests that dreams help sort out daily events and consolidate memories?

<p>Information-processing theory (B)</p> Signup and view all the answers

In which part of the sleep cycle do night terrors typically occur?

<p>During the first few hours of NREM-3 sleep (A)</p> Signup and view all the answers

What is a critical factor in explaining the physiological functions of dreams?

<p>Increased brain activity during sleep (C)</p> Signup and view all the answers

Freud’s interpretation of dreams characterizes them as what type of phenomenon?

<p>Psychic safety valves for unacceptable feelings (D)</p> Signup and view all the answers

What percentage of children experience at least one episode of sleepwalking?

<p>20% (C)</p> Signup and view all the answers

What could be a potential consequence of untreated sleep apnea?

<p>Increased risk of high blood pressure and heart issues (D)</p> Signup and view all the answers

Which part of the brain is noted to be less active during dreaming, contributing to the lack of inhibition in dreams?

<p>Frontal lobe (A)</p> Signup and view all the answers

What does the cognitive perspective emphasize regarding dream content?

<p>The mind exerts top-down control over dream content. (C)</p> Signup and view all the answers

What triggers the sudden sleep attacks in narcolepsy?

<p>Strong emotions such as laughter or anger (A)</p> Signup and view all the answers

What is a significant age-related factor associated with sleep disorders in children?

<p>Reduction in NREM-3 sleep with age (B)</p> Signup and view all the answers

What type of dream disorder involves sudden uncontrollable sleepiness?

<p>Narcolepsy (B)</p> Signup and view all the answers

What is the primary function of dreams, according to the physiological function theory?

<p>To help develop and preserve neural pathways (C)</p> Signup and view all the answers

What characterizes the differences in dreams between children and adults?

<p>Adults engage in more coherent narratives in their dreams. (D)</p> Signup and view all the answers

What is one criticism of Freud's wish-fulfillment theory of dreams?

<p>It lacks scientific support and is open to varied interpretations. (D)</p> Signup and view all the answers

How do dreams engage with waking cognition according to the content presented?

<p>By simulating reality based on our concepts and knowledge. (A)</p> Signup and view all the answers

What percentage of dreams among women typically has sexual content?

<p>Fewer than 10 percent (B)</p> Signup and view all the answers

Which theory suggests that dreams serve as a mechanism for sorting through daily events?

<p>Information-processing (D)</p> Signup and view all the answers

What is one of the key functions associated with REM sleep as agreed by most sleep theorists?

<p>Facilitates memory consolidation (D)</p> Signup and view all the answers

What is the term for the phenomenon where REM sleep increases after a period of sleep deprivation?

<p>REM rebound (A)</p> Signup and view all the answers

What is the ‘latent’ content of a dream according to Freud's theory?

<p>The hidden meanings and desires (A)</p> Signup and view all the answers

Which sleep disorder involves episodes of not breathing during sleep?

<p>Sleep apnea (D)</p> Signup and view all the answers

Which of the following is NOT typically a consequence of sleep deprivation?

<p>Improved cognitive function (D)</p> Signup and view all the answers

Freud's wish-fulfillment theory of dreaming claims that dreams do what?

<p>Provide insights into unconscious desires (D)</p> Signup and view all the answers

Which type of content does the physiological function theory of dreaming primarily focus on?

<p>Neural development and maintenance (D)</p> Signup and view all the answers

What term describes the diagnosis of ongoing substance craving and use despite significant life disruption?

<p>Substance use disorder (B)</p> Signup and view all the answers

What percentage in the substance use disorder diagnosis categories indicates severe dependence?

<p>6 or more indicators (D)</p> Signup and view all the answers

How does addiction impact brain changes after quitting a substance?

<p>Changes may persist leading to strong cravings (A)</p> Signup and view all the answers

Which psychoactive substance is identified as a stimulant?

<p>Caffeine (D)</p> Signup and view all the answers

Which aspect of dreams does the activation-synthesis theory focus on?

<p>Interpreting neural activity (D)</p> Signup and view all the answers

What is the main consequence of developing tolerance to a substance?

<p>Increased need for larger doses to achieve the same effect (D)</p> Signup and view all the answers

Which of these describes a characteristic of drug withdrawal?

<p>Distress and discomfort after stopping use (D)</p> Signup and view all the answers

What defines diminished social functioning related to substance use?

<p>Disruption of commitments in various areas of life (B)</p> Signup and view all the answers

What is one of the primary effects of depressants on the body?

<p>Slowed body functions (C)</p> Signup and view all the answers

Why are women generally more vulnerable to alcohol use disorder compared to men?

<p>They have less of an enzyme that digests alcohol. (C)</p> Signup and view all the answers

Which factor may influence a user's experience with a drug according to cultural context?

<p>The user's expectations influenced by their culture (B)</p> Signup and view all the answers

What happens to brain function as a result of prolonged and excessive alcohol consumption?

<p>The brain may shrink in size. (B)</p> Signup and view all the answers

What is the primary role of neurotransmitters in the brain's interaction with psychoactive drugs?

<p>They mimic or inhibit the brain's natural chemical messengers. (D)</p> Signup and view all the answers

Which of the following best describes the effects of alcohol as a depressant?

<p>It disinhibits judgment and slows reaction times. (A)</p> Signup and view all the answers

What does 'hazardous use' of a substance refer to?

<p>Continuing substance use despite physical or psychological problems (C)</p> Signup and view all the answers

How does alcohol act as a disinhibitor at lower doses?

<p>By promoting impulsivity and reducing social inhibitions (D)</p> Signup and view all the answers

What is a common effect of psychoactive drug use on social activities?

<p>Isolation from friends and family (C)</p> Signup and view all the answers

What is one potential outcome of reduced social and recreational activities due to substance use?

<p>Increased feelings of loneliness and isolation (B)</p> Signup and view all the answers

Which of the following statements about alcohol consumption is true?

<p>Alcohol has an equal impact on both beneficial and harmful behaviors. (D)</p> Signup and view all the answers

What psychological effect does alcohol have on self-awareness?

<p>It reduces self-awareness and creates a focus on immediate situations. (B)</p> Signup and view all the answers

How does solitary drinking affect mood according to the research?

<p>It increases the likelihood of developing substance use disorder. (A)</p> Signup and view all the answers

What do expectancy effects suggest about alcohol consumption behavior?

<p>Believing one has consumed alcohol can influence behavior, regardless of actual consumption. (A)</p> Signup and view all the answers

What role does alcohol play in reducing inhibitions related to sexual responses?

<p>It allows individuals to attribute their behaviors to alcohol, thereby reducing guilt. (C)</p> Signup and view all the answers

What are barbiturates primarily used for?

<p>To induce sleep and reduce anxiety. (D)</p> Signup and view all the answers

What is a potential risk of mixing barbiturates with alcohol?

<p>It may lead to a greater depressive effect on body functions. (A)</p> Signup and view all the answers

Why do individuals with low self-esteem often drink alcohol?

<p>To suppress awareness of their shortcomings. (D)</p> Signup and view all the answers

What effect do expectancy effects have on adolescents in relation to alcohol consumption?

<p>They lead adolescents to drink when they believe it will improve their mood. (D)</p> Signup and view all the answers

What immediate effect do epinephrine and norepinephrine have on the body?

<p>Enhance mental clarity (D)</p> Signup and view all the answers

What neurotransmitter is NOT depleted by cocaine use?

<p>Acetylcholine (C)</p> Signup and view all the answers

What is a common outcome for adult smokers when reflecting on their smoking habits?

<p>They express regret about smoking (A)</p> Signup and view all the answers

What percentage of Americans who have ever smoked have managed to quit?

<p>50% (C)</p> Signup and view all the answers

What type of support is beneficial for people trying to quit smoking?

<p>Nicotine replacement therapy (C)</p> Signup and view all the answers

What psychological effect does cocaine produce upon initial use?

<p>Intense euphoria (C)</p> Signup and view all the answers

What withdrawal symptom might a person expect when stopping smoking?

<p>Cravings (B)</p> Signup and view all the answers

How does cocaine affect aggression according to studies?

<p>Increases aggressive behavior (C)</p> Signup and view all the answers

Which factor is believed to influence a user's psychological experience with cocaine?

<p>Dosage and form of consumption (B)</p> Signup and view all the answers

What situation might lead an ex-smoker to return to smoking?

<p>Enduring high stress (A)</p> Signup and view all the answers

What is the primary addictive substance in cigarettes?

<p>Nicotine (B)</p> Signup and view all the answers

What is a long-term health impact usually associated with smoking?

<p>Higher rates of depression (C)</p> Signup and view all the answers

What approach do some researchers support for quitting smoking?

<p>Abrupt cessation or 'cold turkey' (C)</p> Signup and view all the answers

Which characteristic is associated with methamphetamine compared to amphetamines?

<p>Greater physical effects (D)</p> Signup and view all the answers

What is a potential consequence of long-term use of opiates?

<p>Addiction leading to tolerance and withdrawal symptoms (D)</p> Signup and view all the answers

Which of the following drugs is classified as a stimulant?

<p>Caffeine (A)</p> Signup and view all the answers

What effect do stimulants generally have on the body?

<p>They excite neural activity and speed up body functions. (A)</p> Signup and view all the answers

What is the primary effect of nicotine on the central nervous system?

<p>It stimulates the release of neurotransmitters. (A)</p> Signup and view all the answers

Which statement accurately reflects the impact of barbiturates?

<p>They reduce anxiety but impair memory and judgment. (C)</p> Signup and view all the answers

What happens to the brain’s production of endorphins with repeated use of opiates?

<p>The brain stops producing endorphins over time. (D)</p> Signup and view all the answers

What is a common misconception regarding the use of stimulants for academic performance?

<p>They provide modest benefits and can be addictive. (C)</p> Signup and view all the answers

Which of the following is NOT a form of opiate?

<p>Caffeine (B)</p> Signup and view all the answers

What is a significant risk of long-term tobacco use?

<p>A higher chance of death from smoking-related diseases. (C)</p> Signup and view all the answers

Which effect is associated with withdrawal from nicotine?

<p>Severe cravings and irritability. (A)</p> Signup and view all the answers

How do e-cigarettes compare to traditional cigarettes?

<p>They can increase the likelihood of using conventional cigarettes. (B)</p> Signup and view all the answers

What can increase the chances of an overdose when using opiates?

<p>Developing a tolerance leading to larger doses. (B)</p> Signup and view all the answers

What is an effect of overdosing on opiates?

<p>Reduction in breathing and potential death. (C)</p> Signup and view all the answers

What psychological effect can vary during an LSD trip?

<p>Mood, ranging from euphoria to panic (A)</p> Signup and view all the answers

How does THC affect a user's sensory perception?

<p>Amplifies sensitivity to colors and sounds (A)</p> Signup and view all the answers

Which of the following is a negative aftereffect of marijuana use?

<p>Increased risk of psychological disorders (A)</p> Signup and view all the answers

How does the elimination of THC from the body differ from that of alcohol?

<p>THC and its by-products stay in the body for more than a week (C)</p> Signup and view all the answers

What is a common effect of regular use of marijuana, especially during adolescence?

<p>Increased risk of anxiety and depression (C)</p> Signup and view all the answers

What is the initial pleasurable effect of alcohol consumption?

<p>Initial high followed by relaxation (A)</p> Signup and view all the answers

What neurotransmitter is primarily released by methamphetamine, affecting energy and mood?

<p>Dopamine (C)</p> Signup and view all the answers

Which of the following is NOT a common aftereffect of methamphetamine use?

<p>Increased creativity (D)</p> Signup and view all the answers

Which characteristic of a hallucinogenic drug is primarily noted about LSD?

<p>Visual 'trip' and risk of panic (B)</p> Signup and view all the answers

What is the primary health risk associated with Ecstasy's dehydrating effects during prolonged dancing?

<p>Severe overheating (B)</p> Signup and view all the answers

What do psychoactive drugs generally trigger in users upon repeated use?

<p>Increased tolerance and negative aftereffects (C)</p> Signup and view all the answers

How does Ecstasy primarily affect serotonin in the brain?

<p>Releases it and blocks its reuptake (C)</p> Signup and view all the answers

What does increased THC exposure lead to in terms of withdrawal experiences?

<p>Prolonged withdrawal with milder symptoms (C)</p> Signup and view all the answers

Which of the following is a characteristic effect of hallucinogens?

<p>Distortion of perceptions (D)</p> Signup and view all the answers

Which of the following substances is classified as a stimulant?

<p>Cocaine (C)</p> Signup and view all the answers

What type of experiences do users often report when they are under the influence of hallucinogens?

<p>Visual and sensory distortions (B)</p> Signup and view all the answers

Which described effect of ecstasy (MDMA) underlines its use?

<p>Dehydration and overheating (A)</p> Signup and view all the answers

What is the effect of caffeine at high doses?

<p>Anxiety and restlessness (A)</p> Signup and view all the answers

Which of the following substances is classified as a mild hallucinogen?

<p>Marijuana (D)</p> Signup and view all the answers

What role does regular use of nicotine play in health risks?

<p>Causes various diseases including cancer (B)</p> Signup and view all the answers

What term describes the experience of altered consciousness often reported after a near-death experience?

<p>Transcendence (D)</p> Signup and view all the answers

Which brain region shows increased activity during hallucinogenic experiences?

<p>Visual cortex (B)</p> Signup and view all the answers

What long-term effect can the repeated use of Ecstasy have on serotonin-producing neurons?

<p>Permanent damage (C)</p> Signup and view all the answers

Which phenomenon often occurs as the peak of a hallucinogenic experience?

<p>Feelings of separation from the body (A)</p> Signup and view all the answers

What substance is commonly associated with the club drug scene from the 1990s?

<p>Ecstasy (D)</p> Signup and view all the answers

What feeling do users often experience when taking Ecstasy in social contexts?

<p>Connectedness (D)</p> Signup and view all the answers

What physiological effect can result from high doses of hallucinogens?

<p>Impaired memory (A)</p> Signup and view all the answers

What negative long-term effect can chronic alcohol use have on the liver?

<p>Liver cirrhosis (B)</p> Signup and view all the answers

What is a long-term respiratory effect associated with nicotine use?

<p>Bronchitis (D)</p> Signup and view all the answers

Which of the following is a cognitive effect related to chronic marijuana use?

<p>Diminished attention span (D)</p> Signup and view all the answers

What is a potential long-term cardiovascular effect of nicotine?

<p>Increased heart rate (B)</p> Signup and view all the answers

In terms of mental health, what is a negative long-term effect of alcohol use?

<p>Increased anxiety (D)</p> Signup and view all the answers

What long-term impact can marijuana have on motivation and behavior?

<p>Decreased motivation and apathy (B)</p> Signup and view all the answers

What is a potential effect of alcohol on brain function over the long term?

<p>Brain shrinkage (A)</p> Signup and view all the answers

Which of the following is often a long-term consequence of nicotine dependence?

<p>Chronic obstructive pulmonary disease (COPD) (C)</p> Signup and view all the answers

What long-term neuropsychological effect is associated with heavy marijuana use?

<p>Long-term memory impairment (B)</p> Signup and view all the answers

What is a negative long-term consequence of chronic alcohol use on social relationships?

<p>Social isolation (C)</p> Signup and view all the answers

What effect can chronic nicotine use have on the skin over time?

<p>Accelerated aging (D)</p> Signup and view all the answers

What long-term effect does marijuana use have on emotional well-being?

<p>Increased risk of depression (C)</p> Signup and view all the answers

What unwanted chronic health effect is often connected to long-term alcohol use?

<p>Fatty liver disease (C)</p> Signup and view all the answers

What is one negative long-term effect of heavy marijuana use on academic performance?

<p>Lower academic achievement (A)</p> Signup and view all the answers

How does tolerance affect substance use disorders?

<p>It requires users to consume larger doses for the same effect. (C)</p> Signup and view all the answers

What is a primary characteristic of addiction?

<p>The desire to use the drug despite negative consequences. (D)</p> Signup and view all the answers

Which of the following substances is classified as a depressant?

<p>Heroin (B)</p> Signup and view all the answers

What can excessive alcohol consumption lead to in the brain?

<p>Shrinkage of brain tissue (C)</p> Signup and view all the answers

What are common effects of stimulants?

<p>High energy and mood elevation (A)</p> Signup and view all the answers

Which drug is known for permanently reducing dopamine production when abused?

<p>Methamphetamine (A)</p> Signup and view all the answers

Which of the following is a potential effect of Ecstasy?

<p>Dehydration and body temperature escalation (D)</p> Signup and view all the answers

What is a common effect of hallucinogens like LSD?

<p>Sensory distortions and hallucinations (D)</p> Signup and view all the answers

Frequent marijuana users might experience which effect?

<p>Increased need to consume larger amounts for effect (D)</p> Signup and view all the answers

Which symptom is associated with withdrawal from psychoactive drugs?

<p>Physical pain and discomfort (C)</p> Signup and view all the answers

What distinguishes behavioral addictions, such as gambling disorder?

<p>They can develop compulsive and dysfunctional behaviors. (C)</p> Signup and view all the answers

Which of the following statements is accurate regarding nicotine?

<p>It is a stimulant making quitting difficult. (C)</p> Signup and view all the answers

What risk is associated with chronic marijuana use?

<p>Increased risk of social anxiety disorder (D)</p> Signup and view all the answers

Which of the following best describes the cravings associated with alcohol use disorder?

<p>They can persist even when faced with negative consequences. (C)</p> Signup and view all the answers

Flashcards

Hearing's Importance

Hearing is crucial for survival, communication, and social interaction, aiding in adaptation and relationships.

Invisible Disability - Hearing Loss

Hearing loss is a disability that impacts communication and social interaction, making it difficult to understand conversations, jokes, or name recognition.

Hearing Sensitivity

Humans possess remarkable sensitivity to faint sounds. This is critical for recognizing subtle and distant sounds.

Sound Variation Recognition

Human hearing excels at identifying subtle sound variations, enabling us to distinguish among various voices.

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Speed of Hearing

Hearing is a remarkably fast sense, detecting and processing sound changes much quicker than other senses like sight.

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Audition

The sense or act of hearing.

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Human Voice Range

The range of sounds best detectable by the human ear aligns with the range of human voices.

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Sound Waves

Waves of compressed and expanded air, created by air molecules bumping into each other.

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Pitch

The highness or lowness of a tone, determined by the frequency (or length) of sound waves. Higher frequency = higher pitch.

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Amplitude

The height of a sound wave; determines loudness. Higher amplitude = louder sound.

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Frequency

The number of complete wavelengths that pass a point in a given time (e.g., per second)

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Decibel

A unit for measuring sound intensity.

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Eardrum

A membrane in the ear that vibrates in response to sound waves.

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Middle Ear

The chamber between the eardrum and cochlea containing tiny bones that amplify sound vibrations.

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Cochlea

A coiled, fluid-filled tube in the inner ear where sound waves trigger nerve impulses.

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Hair Cells

Cells lining the cochlea that translate fluid vibrations into electrical signals, triggering nerve impulses.

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Auditory Nerve

The nerve that transmits neural messages from the ear to the brain.

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Sensorineural Hearing Loss

Hearing loss caused by damage to the cochlea's hair cells or the auditory nerve.

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Sensorineural Hearing Loss

Hearing loss due to damage in the cochlea's receptor cells or auditory nerves. It's the most common type of hearing loss, also known as nerve deafness.

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Conduction Hearing Loss

Less common hearing loss caused by damage to the mechanical system that transmits sound to the cochlea (eardrum and middle ear bones).

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Cochlear Hair Cells

Specialized cells in the cochlea that are crucial for hearing. They work similarly to carpet fibers; sound vibrations cause them to respond and convey sound information to the brain.

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Noise-Induced Hearing Loss

Hearing loss caused by prolonged exposure to loud noises, like loud music or machinery.

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Cochlear Implant

An electronic device that converts sound into electrical signals to stimulate the auditory nerve and restore hearing in people with nerve deafness.

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Loudness Perception

The brain interprets loudness based on the number of activated hair cells in the cochlea. Louder sounds activate more hair cells.

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Pitch Discrimination

Different pitches are recognized by the brain identifying the specific location on the cochlea's basilar membrane that sound waves are affecting.

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Place Theory

A theory of hearing that suggests different pitches are perceived due to vibrations at specific locations along the basilar membrane in the cochlea.

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Pain

Pain is a complex experience involving both physical sensations and psychological factors. It is not just a physical event but a biopsychosocial process.

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Nociceptors

Sensory receptors that detect potentially harmful stimuli like heat, pressure, or chemicals.

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Gate-Control Theory

A theory suggesting that the spinal cord contains a 'gate' that regulates the transmission of pain signals to the brain.

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Phantom Limb Pain

Pain or sensations felt in a limb that has been amputated.

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Biopsychosocial Perspective

A model of pain that considers biological, psychological, and social factors in understanding pain.

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Biological influences

Factors like genetics and physical characteristics that affect pain experience.

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Psychological influences

Mental factors that influence how we perceive and experience pain, such as attention and focus.

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Place Theory

In hearing, the theory that links the pitch we hear with the location on the cochlea's membrane stimulated.

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Frequency Theory

In hearing, the theory that the rate of nerve impulses matches the frequency of a sound, allowing pitch perception.

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Volley Principle

Neurons fire in rapid succession, enabling perception of high-frequency sounds greater than one neuron's capacity.

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Sound Location

The brain uses the intensity difference and time delay of sound arrival at each ear to determine position.

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Loudness

Perception of sound intensity, determined by the amplitude of sound waves.

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Pitch

Perception of tone, determined by the frequency of sound waves.

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High Pitch

Sound with a high frequency.

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Low Pitch

Sound with a low frequency.

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Sensorineural hearing loss

Hearing loss caused by damage to cochlea's hair cells or their associated nerves.

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Conduction hearing loss

Hearing loss due to problems in the mechanical system that conveys sound waves to the cochlea.

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Sound Localization

The brain's ability to determine the source of a sound based on differences in the sound's arrival time and intensity between the two ears.

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Long Wavelength sound

Sound waves with a longer distance between peaks.

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Large Amplitude sound

Sound waves with a large difference between their peak and trough.

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Sensorineural Hearing Loss

Damage to the inner ear or auditory nerve, often caused by prolonged exposure to loud sounds.

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Place Theory

The theory that pitch perception is determined by the location of the vibrating hair cells along the basilar membrane in the cochlea.

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Eardrum

A thin membrane that vibrates in response to sound waves, transmitting vibrations to the middle ear bones.

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Middle Ear Bones

The hammer, anvil, and stirrup; these bones transmit sound vibrations from the eardrum to the oval window.

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Oval Window

A membrane-covered opening that transmits vibrations from the middle ear bones to the fluid-filled cochlea.

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Cochlea

The spiral-shaped structure in the inner ear that contains the basilar membrane and hair cells.

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Auditory Nerve

The nerve fibers that transmit sound signals from the cochlea to the brain.

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Auditory Cortex

The area in the brain that processes auditory information.

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Pain Peak Moment

Remembering the peak intensity of pain, potentially leading to perceiving it as worse.

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Pain at the end

The intensity of pain experienced during the final moments of an experience plays a significant role in pain memory.

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Taper-Down Treatment

Pain is lessened gradually at the end in an experience to make the experience seem less painful.

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End of Experienc

How an experience ends dramatically impacts the memory of any pleasure or pain associated with it.

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Social Pain

Pain perceived through empathy for another's pain, or due to cultural and social context.

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Pain Control Therapies

Treatments to manage pain, encompassing various methods like medications, surgery, electrical stimulation, and cognitive techniques.

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Endorphins

Natural painkillers released by the brain in response to pain or physical exertion.

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Placebos

Inert substances or procedures that, due to perceived effectiveness, can relieve pain through psychological effects by triggering endorphin release.

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Distraction

Shifting focus away from pain to reduce pain perception and increase pain tolerance.

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Virtual Reality

A powerful tool for distracting from pain by immersing the individual in a computer-generated environment.

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Virtual Reality Pain Control

Virtual reality can distract from pain, reducing the brain's response to painful stimulation, useful for burn victims.

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Basic Taste Sensations

Once thought to be sweet, sour, salty, and bitter, as expanded to include umami.

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Umami

Savory, meaty taste, often associated with the flavor enhancer MSG.

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Taste's Survival Function

Pleasureful tastes draw us to energy and protein-rich foods. Aversive tastes prevent us from potentially toxic foods.

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Taste Buds Location

Tiny bumps on the tongue, houses taste buds.

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Taste Receptor Cells

Inside taste buds, these cells sense food molecules and transmit the message to the brain.

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Taste Transmission

Taste messages are sent to the brain’s temporal lobe.

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Supertasters

People with more taste buds, able to experience more intense tastes.

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Taste Receptor Reproduction

Taste receptors reproduce quickly (every few weeks) - thus burns are less significant than you think.

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Taste Sensitivity and Age

Taste sensitivity decreases with age, along with the number of taste buds.

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Taste and Expectations

Your expectations about food can influence how you perceive its taste.

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Smell Receptors

Tiny clusters of receptor cells in the nasal cavity, reacting to molecules carried in the air.

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Olfaction

The sense of smell.

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Anosmia

The inability to smell.

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Kinesthesia

The sense of body position and movement.

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Vestibular sense

The sense of body movement and position that enables the sense of balance.

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Sensory interaction

The principle that one sense may influence another.

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Visual-kinesthetic interaction

How vision and kinesthesia work together.

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Smell and taste interaction

Smell profoundly influences the perception of taste.

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Body position monitoring

How our vestibular sense tracks the position of our bodies.

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Vestibular sensors

Sensors in the inner ear that monitor head position and movement

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Equilibrium

The state of balance and stability.

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Fluid-filled Semicircular Canals

Structures in the inner ear that detect rotational head movement.

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Vestibular sacs

Calcium crystal-filled structures in the inner ear that detect head tilt.

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Olfactory Neurons

Nerve cells in the nose that detect smells.

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Pheromones

Chemical signals secreted by animals that affect the behavior of others of the same species.

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Olfactory Receptors

Proteins that bind to odor molecules, initiating the smell detection process.

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Olfactory Cortex

Part of the brain that interprets patterns of activated receptors to create an overall smell.

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Olfactory Signals

Olfactory pathways bypass the thalamus—the brain's sensory relay station.

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Smell Discrimination

Humans can distinguish between trillions of scents by combining olfactory receptors.

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Smell and Memory

Our sense of smell strongly links with memory and emotion, via the limbic system.

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Smell and Emotions

Smells strongly influence emotions and judgements, even influencing moral evaluations.

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Smell Acuity

Smell is less acute than sight or hearing; details are harder to perceive.

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Individual Smell Differences

Genetics, age, and personal experiences affect smell perception.

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Animal Olfactory Abilities

Animals may have significantly better senses of smell than humans, crucial for navigation and communication.

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Sensory Interaction

Our senses don't work alone; they influence each other.

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McGurk Effect

Our brain blends conflicting sensory information, creating a new perception.

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Embodied Cognition

Bodily sensations influence our thoughts and judgments.

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Synesthesia

Stimulation of one sense triggers an experience in another.

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Vision

The sense of sight, processed by the occipital lobes.

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Hearing

The sense of sound, processed by the temporal lobes.

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Touch

The sense of pressure, warmth, cold, and pain, processed by the somatosensory cortex.

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Taste

The sense of chemical molecules, processed near the frontal/temporal lobe border.

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Smell

The sense of chemical molecules, processed by the olfactory bulb.

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Kinesthesia

Awareness of body position and movement.

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Vestibular Sense

Awareness of balance and head position.

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Nociceptors

Sensory receptors detecting harmful stimuli (e.g., pain).

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Gate-Control Theory

Spinal cord 'gate' modulates pain signal transmission.

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Phantom Limb Pain

Pain or sensations felt in a limb that has been amputated, despite the limb not being present.

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Biopsychosocial Perspective of Pain

A model of pain that considers biological, psychological, and social factors. Pain is not just a physical event.

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Gate-Control Theory of Pain

The theory that the spinal cord has a 'gate' that regulates the transmission of pain signals to the brain.

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Nociceptors

Sensory receptors that detect potentially harmful stimuli like heat, pressure, or chemicals.

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Sensory Interaction

Our senses influence one another, and the brain blends the information to inform our perceptions.

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Embodied Cognition

The influence of our body sensations on our cognitive preferences and judgments.

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Chemical Senses (Taste & Smell)

Taste and smell are both triggered by chemicals.

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Taste Basic Sensations

Taste is a combination of five basic sensations: sweet, sour, salty, bitter, and umami. Also, aromas.

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Kinesthesia

The sense of the position and movement of body parts.

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Vestibular Sense

The sense that helps maintain balance by sensing head position and movement.

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Place Theory

Pitch is determined by where the sound waves trigger the cochlea.

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Frequency Theory

Pitch is determined by how fast the nerve impulses fire.

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Olfactory Receptor Cells

Cells in the nose that detect odors.

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Absolute Threshold

The minimum amount of stimulation needed for a person to detect a stimulus 50% of the time.

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Gestalt Psychology

A school of thought that emphasizes how our brains organize sensory information into meaningful wholes.

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Sound Transmission

The process of sound waves traveling from the outer ear to the inner ear, amplified by tiny bones.

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Vestibular sense

Sense of body position and balance.

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Phi phenomenon

The illusion of movement created by rapid, successive flashing of images.

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Linear Perspective

A monocular cue where parallel lines appear to converge in the distance.

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Top-Down Processing

Perception guided by prior knowledge, experiences, and expectations.

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Precognition

The supposed ability to predict future events.

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Monocular Cues

Depth cues that require only one eye.

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Sensory Interaction

The interaction of two or more senses to create a unified experience.

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Opponent-Process Theory

Theory of color vision that proposes that color perception is controlled by opposing color processes in the brain.

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Kinesthetic sense

Body position and movement awareness.

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Semicircular canals

Inner ear structures that contribute to balance and spatial orientation.

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Relative size

A monocular depth cue in which the perceived size of an object is used to estimate its distance.

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Perceptual set

The mental predisposition to perceive something in a particular way.

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Strooscopic Movement

Illusion of movement created by presenting a series of slightly different images in rapid succession.

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Unconscious (Freud)

A hidden part of the mind containing anxiety-provoking thoughts and emotions, believed to be crucial for healing.

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Unconscious (Modern)

A mental process that operates without awareness.

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Hypnosis

A social interaction where a hypnotist suggests certain thoughts or behaviors to a subject.

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Hypnotic Induction

The process of guiding a person into a hypnotic state.

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Iris

The colored part of the eye that controls the amount of light entering.

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Feature Detectors

Neurons that respond to specific features in visual stimuli.

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Signal Detection Theory

A theory about how we detect stimuli in the presence of distractions.

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Perceptual Constancy

The ability to recognize objects as stable despite changes in sensory input.

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Perceptual Set

A mental predisposition to perceive things in a certain way.

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Bottom-up Processing

Analysis that begins with sensory receptors and works up to the brain's integration.

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Transduction

Converting one form of energy into another, like light to neural messages.

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Absolute Threshold

The minimum stimulation needed to detect a stimulus 50% of the time.

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Gestalt Principles

Laws describing how we organize individual features into a unified perception.

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Vestibular Sense

Sense of body movement and position, enabling balance.

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Phi Phenomenon

An illusion of movement created by rapid succession of images.

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Depth Cues

Visual cues that indicate distance and three-dimensional structure.

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Consciousness

Subjective awareness of oneself and one's environment.

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Psychology's view of consciousness

Early psychology focused on describing and explaining conscious states, but later shifted to behaviorism.

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Hypnosis

A social interaction where one person suggests another's perceptions, feelings, thoughts, or behaviors will occur.

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Altered states of consciousness

States of awareness different from normal waking awareness, including daydreaming, sleep, drug use, and meditation.

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Modern unconscious

Unconscious mental processes operate without awareness, different from Freud's concept.

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Linear Perspective

A monocular cue that makes distant objects appear smaller and closer together, helping us perceive depth and distance.

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Top-Down Processing

Using past experiences and expectations to interpret sensory information.

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Precognition

The claimed ability to see the future.

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Monocular Cue (Relative Size)

A single eye's ability to perceive depth through size differences of objects.

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Noise-Induced Hearing Loss

Hearing damage caused by long-term exposure to loud noises.

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Sensory Interaction

One sense affecting another sense, like smell influencing taste.

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Opponent-Process Theory

Color perception based on opposing color pairs (e.g., red-green, blue-yellow).

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Kinesthesia

The sense of body position and movement.

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Vestibular Sense

Sense of body movement, position, and balance.

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Semicircular Canals

Inner ear structures for detecting rotational head movements.

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Selective Attention

Focusing conscious awareness on a particular stimulus.

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Perceptual Set

Mental predisposition to perceive something in a particular way.

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Transduction

Conversion of one form of energy into another (like light to electrical signals).

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Retina

Light-sensitive inner surface of the eye, containing receptor cells.

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Pupil

Adjustable opening in the center of the eye.

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Occipital Lobe

Brain area responsible for processing visual information.

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Rods

Retinal receptors that detect black, white, and gray.

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Feature Detectors

Specialized neurons that respond to specific visual features (like edges, lines, angles).

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Top-down processing

Using prior knowledge and expectations to interpret sensory information.

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Hypnosis and Mind Control

Hypnosis is not mind control. Hypnotizable people are more susceptible to suggestions, focusing on images and behaviors.

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Suggestibility

People are, to some extent, open to suggestions, even without hypnosis.

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Hypnotic Susceptibility

A measure of how easily someone is influenced by suggestions, often measured by scales like the Stanford Hypnotic Susceptibility Scale.

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Hypnotic Ability

The ability to focus entirely on a task, becoming engrossed in imagination and possibilities.

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Hypnosis and Memory

Hypnosis cannot retrieve forgotten memories. Memories are not always fully recorded or retrievable.

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False Memories

Hypnotically retrieved memories often blend fact with fiction. This can lead to inaccurate recall.

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Hypnosis and Recall

Research disproves the common belief that hypnosis can fully and accurately recall forgotten events.

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Hypnosis and Testimony

Hypnotically-obtained testimony is often inadmissible in court because hypnosis can plant false memories.

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Hypnosis and Control

Hypnosis doesn't give hypnotists control over people's wills; subjects often act as they believe they should act in the context of hypnosis.

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Hypnotic Therapy Benefits

Hypnosis can aid in treating conditions like headaches, asthma, and stress, and it's been proven useful for some medical situations.

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Hypnosis and Pain Relief

Hypnosis can significantly reduce pain perception and potentially lessen the need for pain medication in some situations.

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Social Influence Theory

Hypnosis often reflects normal suggestibility and social influence, not an altered state.

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Posthypnotic Suggestion

A suggestion made during hypnosis to be acted on after the person is no longer hypnotized, often for controlling symptoms or behaviors.

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Hypnotherapy

A therapy that aims to help patients uncover thoughts and feelings that cause problems or to change unwanted behaviors.

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Circadian Rhythm

Our internal biological clock that regulates bodily rhythms, like temperature and wakefulness, on a 24-hour cycle.

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Hypnosis

A state of consciousness where a person is highly suggestible and focused on a suggestion.

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REM Sleep

A recurring sleep stage characterized by vivid dreams and rapid eye movement; also called paradoxical sleep because muscles are relaxed except for minor twitches, while other body systems are active.

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Dissociation

A split in consciousness, allowing for simultaneous thoughts and behaviors.

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Selective attention

The focusing of conscious awareness on a particular stimulus.

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Sleep Stages

Distinct phases of sleep, recurring approximately every 90 minutes, each with different brainwave patterns, eye movements, and muscle activity.

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Social influence theory

A behavior is driven by external expectations, like in playing a role.

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NREM Sleep

Sleep stages encompassing all sleep stages, except for REM sleep; includes light to deep sleep.

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Alpha Waves

Relatively slow brain waves associated with a relaxed, awake state.

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Divided-consciousness theory

Hypnosis involves a splitting of consciousness.

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Consciousness

Our awareness of ourselves and our environment.

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Posthypnotic suggestion

A suggestion made during hypnosis that is carried out after the hypnotic state.

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Circadian rhythm

A roughly 24-hour cycle of biological activity that influences sleep and other functions.

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Sleep

A state of periodic, natural loss of consciousness, distinct from unconsciousness or coma.

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Sleep cycle

A roughly 90-minute cycle of distinct sleep stages.

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Hypnosis as Divided Consciousness

Some researchers believe hypnosis involves more than role-playing, suggesting a special state of dissociation, or divided consciousness, where different levels of awareness are split.

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Hypnotic Dissociation

A belief that hypnosis induces a split between different levels of consciousness, allowing for actions or sensations to occur separately from conscious experience.

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Social Influence Theory

A perspective on hypnosis that views hypnotized behaviors as role-playing, where individuals act according to expectations of the hypnotist.

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Selective Attention in Hypnosis

Hypnosis might involve selective attention; brain activity linked to processing pain stimuli is reduced during hypnosis, without affecting sensory input.

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Dissociation

A split in consciousness, allowing for simultaneous thoughts and behaviors, like in hypnosis where a sensation of pain may be separated from its emotional suffering.

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Dual-processing

Our thinking and acting are more complex than our awareness suggests; conscious and nonconscious parts of our mind can operate separately.

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Hypnosis and Social Influence

Many psychologists see hypnosis as a social interaction where a hypnotist suggests behaviors.

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Hypnosis and Recall

Hypnosis doesn't improve recall of forgotten events, and it can potentially create false memories.

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Hilgard's Divided Consciousness Theory

A theory proposing that hypnosis produces a state of divided consciousness, separating sensations from emotional experiences.

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Posthypnotic Suggestions

Suggestions given during hypnosis that a subject may follow after the hypnotic state ends.

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Two-track Mind

The idea that consciousness operates with two independent and simultaneous processes in our brain.

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Social Interaction in Hypnosis

Hypnosis is primarily viewed as a social interaction between the hypnotist and the subject.

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Sleep-regulating genes

Genes that control our sleep patterns in humans and animals

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Cultural sleep patterns

Variations in sleep duration and schedules across different cultures

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Average adult sleep (workdays)

7 hours of sleep on work days in several countries (Britain, Canada, Germany, Japan, and the United States)

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Weeknight sleep of students/workers

Often less than the average 7 hours due to school schedules, extracurriculars, and lack of set bedtimes

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Circadian clock

Internal biological clock that regulates many body functions, including sleep

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Light-sensitive retinal proteins

Proteins in the retina that respond to light, influencing the circadian clock

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Suprachiasmatic nucleus (SCN)

A cluster of brain cells that controls the circadian rhythm, including sleep-wake cycles

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Melatonin

Hormone produced by the pineal gland that regulates sleepiness

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Pineal gland

A gland in the brain that secretes melatonin, influencing sleepiness

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Social jet lag

Disruption of the circadian rhythm caused by inconsistent sleep schedules, like weekend sleep-ins and delayed bedtimes

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Biological clock disruption

Shifting or impairing the internal circadian rhythm by altering light exposure

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Modern lighting

Artificial light sources that can disrupt the natural sleep-wake cycle

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Sleep's functions

Protect, recuperate, consolidate memories

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Hypnagogic sensations

Bizarre experiences, like jerking, falling, or floating, while transitioning to sleep.

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NREM-2 sleep

A stage of sleep characterized by periodic sleep spindles (bursts of rapid brainwave activity).

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NREM-3 sleep

Deep sleep stage marked by slow delta waves, making it hard to awaken.

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Delta waves

Large, slow brain waves associated with deep sleep (NREM-3).

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REM sleep

Intriguing sleep phase with rapid, saw-toothed brain waves, increased heart and breathing rates, and eye movements (associated with dreaming).

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Sleep cycle

A multistage cycle of sleep repeating approximately every 90 minutes, with deep sleep decreasing and REM sleep increasing over the night.

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Sleep paralysis

A disturbing experience of immobility that may linger as you awaken from REM sleep.

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Paradoxic sleep

A state of internal arousal (like wakefulness) but external calmness (asleep)

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circadian rhythm

Our internal biological clock, influencing sleep patterns.

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sleep stages

Distinct phases of sleep, including NREM-1, NREM-2, NREM-3, and REM, each with unique brainwave patterns and physiological characteristics.

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Hallucinations

False sensory experiences, like seeing or hearing something not present.

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Sleep Consolidation

Sleep replays recent learning and strengthens neural connections.

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Circadian Rhythm

A roughly 24-hour sleep-wake cycle.

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Hypnagogic Sensation

Dream-like feelings experienced right before sleep, like falling.

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Suprachiasmatic Nucleus

Brain region that regulates the sleep-wake cycle.

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Sleep Theory for Athletic Performance

Recuperation theory explains how sleep improves athletic performance.

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REM Sleep

Stage of sleep characterized by dreaming and body paralysis.

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Alpha Waves

Brain waves associated with an awake but relaxed state.

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NREM-2 Sleep

Sleep stage characterized by sleep spindles.

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NREM-3 Sleep

Stage of sleep with delta waves, deepest sleep.

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Sleep Deprivation Effects

Negative consequences of insufficient sleep, from fatigue to impaired decision-making.

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Sleep Debt

Accumulation of sleep loss over time, not cleared by one long sleep.

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Human Growth Hormone

Hormone released by the pituitary gland, crucial for muscle development.

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Creative Problem-Solving Promotion

Sleep supports creative thinking and problem solving.

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Sleep Deprivation Effect on Accidents

Sleep deprivation significantly increases the likelihood of accidents, impacting various activities like driving, airport baggage screening, surgery, and X-ray reading.

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Daylight Saving Time & Accidents

Studies show a correlation between the spring-forward time change and an increase in accidents, likely due to lost sleep.

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Sleep Duration & Lifespan

Individuals who sleep 7–8 hours a night often live longer than those with chronic sleep deprivation, especially older adults.

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Insomnia

A persistent difficulty in falling or staying asleep, impacting 1 in 10 adults and 1 in 4 older adults.

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Sleep Apnea

A sleep disorder characterized by pauses in breathing during sleep, often associated with symptoms like crankiness, weight gain, and daytime sleepiness.

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Improved Sleep Treatment

Gradually increasing sleep duration by 15 minutes each night can improve mood, concentration, memory, and reduce accident risk.

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Sleep Loss Memory

People often underestimate the amount of sleep they have actually had, especially when experiencing sleep loss.

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Sleep and Stress

Stress can negatively affect sleep quality. A personal conflict during the day can lead to less restful sleep.

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Drowsy Driving Accidents

Drowsy driving contributes to a significant portion of traffic accidents in some countries.

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Sleep and Cognitive Function

Sleep deprivation negatively affects cognitive tasks like visual attention, slowing reactions and increasing errors.

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Sleep's role in memory consolidation

Sleep reactivates recent experiences from the hippocampus, transferring them for permanent storage in the cortex.

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Improved memory after sleep

Tasks learned before sleep are better recalled after a night's sleep or even a short nap than after extended wake time.

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Sleep and older adult memory

Older adults with more disrupted sleep struggle with memory consolidation, and memory improves with good sleep.

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Sleep and creative thinking

Sleep allows for better creative problem-solving and spotting connections in new information.

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Sleep and human growth hormone

Human growth hormone, released during slow-wave sleep, is essential for muscle development.

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Sleep and athletic performance

Adequate sleep enhances athletic abilities, reaction time, energy levels, and endurance.

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Sleep and skill learning

Sufficient sleep supports the development of skills and high performance, like in sports and other activities.

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Circadian rhythm

Internal biological clock influencing daily patterns like body temperature, sleep, and wakefulness.

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Sleep stages

Sleep cycles through NREM-1, NREM-2, NREM-3, and REM stages, with characteristic brainwave patterns.

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Sleep's evolutionary role

Sleep has played a protective role in human evolution, potentially providing safety when active hunting is not feasible.

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Narcolepsy

A sleep disorder marked by sudden, overwhelming sleepiness, often lasting less than 5 minutes.

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Sleep Apnea

A sleep disorder where breathing repeatedly stops and starts during sleep.

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Night Terrors

A sleep disorder characterized by high arousal, appearing terrified, and usually occurring in early sleep stages.

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Sleepwalking (Somnambulism)

A sleep disorder where people engage in normal waking activities while asleep, typically during the early NREM sleep stages.

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Insomnia

A persistent difficulty falling or staying asleep, often leading to chronic tiredness.

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Sleep Deprivation Consequences

Sleep loss negatively impacts various aspects of functioning, including difficulty studying, reduced productivity, increased mistakes, irritability, fatigue, and potentially even weight gain.

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Sleep Impact on Weight

Insufficient sleep affects hormones like ghrelin (hunger) and leptin (appetite suppression), and can decrease metabolic rate, increasing cortisol (stress hormone) production. This leads to greater weight gain in sleep-deprived individuals.

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Sleep's Role in Immune Function

Sleep is essential for immune function; adequate sleep boosts the immune response, aiding in the fight against infections. Sleep deficiency can make you more susceptible to illnesses.

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Sleep Needs Teens

Teens require more sleep (8.5-9.5 hours) for optimal physical and mental development.

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Sleep Depletion and Depression

Sleep deprivation is linked to an increased risk of depression, especially in adolescents.

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Smartphone and Sleep

Smartphone use can hinder sleep due to notifications that can disrupt sleep cycles.

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Consequences of Reduced Sleep

Insufficient sleep leads to decreased alertness, cognitive function, increased errors in performance, and emotional instability.

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Sleep and School Start Times

Later school start times can improve adolescent sleep, alertness, and mood, aligned with natural sleep patterns.

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Sleepwalking

A sleep disorder occurring during NREM3 sleep, characterized by walking or other movements while asleep. Sleepwalkers usually return to bed on their own and rarely remember the episode.

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Night Terrors

Sleep disturbance in NREM-3 sleep that involve appearing terrified, talking nonsense, getting up, or walking around. Differing from nightmares as the person feels fear.

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Dreams

A sequence of images, emotions, and thoughts passing through a sleeping person's mind, often vivid, emotional, and bizarre, especially during REM sleep.

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Trauma & Dreams

People often experience nightmares after trauma, which can help process and reduce daytime fears.

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REM Sleep

Rapid eye movement sleep, a sleep stage associated with dreaming.

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Daydreams

Familiar, personal thoughts and scenarios played out in the mind while awake.

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Negative Dreams

Dreams often involving negative events or emotions. For both men and women, 8 out of 10 dreams are negative.

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Media & Dreams

Exposure to violent or sexual media can influence the content of dreams.

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Blind People's Dreams

Studies show that people born blind frequently dream using non-visual senses like hearing, touch, smell, and taste.

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NREM3 sleep

A stage of sleep, characterized by slow-wave activity, considered the deepest stage of sleep. Includes sleepwalking.

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Sleep and Memory Loss

Information learned and experienced during the 5 minutes before sleep is often forgotten, illustrating sleep's impact on memory.

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Manifest Content

The apparent and remembered story line of a dream, according to Freud.

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Latent Content

The underlying meaning of a dream, according to Freud, often involving unconscious wishes.

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Freud's Wish-Fulfillment Theory

Dreams satisfy unacceptable desires in a symbolic way, according to Freud.

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Information-Processing Perspective

Dreams help process and organize daily experiences in memory.

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REM Sleep and Memory

Brain activity during REM sleep reactivates areas active during learning, facilitating memory consolidation.

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Sleep Deprivation and Academic Performance

Lack of sleep negatively affects learning and memory, potentially harming grades.

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Activation-Synthesis Theory

Dreams are the brain's attempt to make sense of random neural activity.

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Dream Recall and Spicy Foods

Spicy foods that disrupt sleep facilitate recall of dreams.

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REM Sleep and Neural Development

REM sleep is crucial for stimulating and developing neural pathways, especially vital in infancy.

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Sleep Patterns and Aging

Sleep time, including REM sleep, decreases throughout life.

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Alcohol-Impaired Driving Decisions

People who claim they won't drive drunk often do so anyway, even when shown they're intoxicated.

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Alcohol-Induced Vomiting Suppression

Heavy drinking after a period of moderate drinking can reduce the body's vomiting response, increasing the risk of poisoning.

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Alcohol's Impact on Memory

Alcohol can hinder the formation of memories, and substantial drinking can have long-lasting effects on the brain.

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Alcohol's Effect on Brain Development

Heavy alcohol use in adolescence-like stages of animal development may cause nerve cell death and hinder synapse growth.

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Alcohol-Induced Blackouts

Heavy drinking can cause memory gaps, like forgetting people or events during intoxication.

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REM Sleep's Role

Alcohol diminishes REM sleep, affecting the consolidation of memories into long-term storage.

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Alcohol Reduced Self-Awareness

Alcohol consumption significantly increases the likelihood of mind-wandering without the drinker being aware.

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Diminished Control (Addiction)

Symptoms of addiction characterized by using more of a substance than intended, struggling to control usage, spending significant time acquiring, using, or recovering from substance use, and craving the substance.

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Diminished Social Functioning (Addiction)

Addiction symptoms involving substance use disrupting responsibilities at work, school, or home, continuing use despite social issues, and reduced social, recreational, and work activities.

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Hazardous Use (Addiction)

Addiction symptoms, characterized by continuing substance use despite known harms to physical or psychological health.

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Tolerance (Addiction)

The need for increasing amounts of a substance to achieve the desired effect, due to the body's adaptation.

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Withdrawal (Addiction)

Unpleasant physical and/or psychological symptoms that occur when substance use is stopped or reduced.

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Alcohol Use Disorder

A disorder characterized by continued problematic alcohol use despite its negative consequences, including tolerance, withdrawal, and a strong drive to use.

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Depressants

Drugs that slow down neural activity and bodily functions, such as alcohol.

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Alcohol

A depressant that disinhibits; it slows brain activity controlling judgment and impulsiveness.

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Brain Stimulation and Hallucinations

Neurosurgery can induce hallucinations by stimulating specific brain regions, and similar stimulation originating within the brain can produce similar effects.

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Emotional Dreams and Limbic System

PET scans show increased activity in the limbic system (amygdala) during emotional dreams, suggesting a link between emotions and dreaming.

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Frontal Lobe and Inhibition in Dreams

Frontal lobe regions (in charge of logical thinking and inhibition) are less active during dreams, likely explaining why dreams are less inhibited than waking thoughts.

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Visual Brain Bursts & Dreams

Visual bursts from the brain, coupled with the limbic system's emotional tone, contribute to the dream experience.

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Limbic/Visual Damage & Dreaming

Damage to either the limbic system or areas of the brain active during dreaming can impair or alter dreaming.

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Dreams & Cognitive Development

Some researchers believe that dreams are part of brain maturation and cognitive development, playing a role in learning and understanding the world.

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Dreams & Waking Cognition Overlap

Dreams draw upon waking knowledge and concepts, simulating reality and containing coherent speech.

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Dreams as Intensified Mind Wandering

Dreams can be viewed as enhanced forms of daydreaming, often involving visual imagery from active brain networks.

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Cognitive Control of Dreams

The cognitive perspective suggests that our thoughts and knowledge actively shape the content of our dreams, contrary to the bottom-up activation theory.

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Wish Fulfillment Theory of Dreams

Freud's theory suggests dreams express unacceptable feelings, containing both remembered content (manifest) and deeper, hidden meaning (latent).

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Information Processing Theory of Dreams

This theory suggests that dreams help sort and consolidate memories from the day.

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Physiological Function of Dreams

Regular brain stimulation during REM sleep may help develop and maintain neural pathways.

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Activation-Synthesis Theory

This theory proposes that REM sleep produces random neural activity, which the brain transforms into narratives.

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Cognitive Development Theory of Dreams

This theory posits that dreams reflect the dreamer's current cognitive development and knowledge.

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REM Rebound

Increased REM sleep following periods of REM sleep deprivation.

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Dream Content

Dreams often involve ordinary events and everyday experiences, sometimes with anxiety or misfortune.

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Sexual Content in Dreams

Less than 10% of men's dreams and even fewer of women's dreams contain sexual content.

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REM Sleep and Dreams

Most dreams occur during REM (Rapid Eye Movement) sleep. NREM dreams are vague and fleeting.

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Freud's Wish-Fulfillment

Dream theory suggesting dreams are a 'safety valve' for unconscious wishes, with manifest (story) concealing latent (true) content.

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Information-Processing Dream Theory

Dreams help process and consolidate the events of the day & improve memory.

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Physiological Function of Dreams

Dreams are linked to brain stimulation helping develop and preserve neural pathways.

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Activation-Synthesis Theory

The brain attempts to make sense of neural activity during sleep by creating a story.

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Cognitive Development Theory of Dreams

Dreams are linked to the dreamer's cognitive development and understanding.

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REM Rebound

Increased REM sleep after REM sleep deprivation in humans, demonstrating its importance.

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Sleep Deprivation Effects

Sleep deprivation can lead to weight gain, reduced muscle strength, weakened immune system, and likely depression.

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Sleep Apnea

A sleep disorder where breathing stops repeatedly during sleep.

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Narcolepsy

A sleep disorder causing sudden attacks of sleep.

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Insomnia

A sleep disorder characterized by difficulty falling asleep or staying asleep.

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Manifest Content

The story line or surface-level content of a dream, often concealing underlying meaning.

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Latent Content

The hidden meaning or unconscious desires behind a dream.

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Psychoactive Drug

A chemical substance that changes perceptions and mood, often altering reality.

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Alcohol's Effect on Self-Awareness

Alcohol reduces self-awareness, making people focus more on immediate situations and less on future consequences, while decreasing inhibitions.

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Alcohol's Impact on Mood

The belief that alcohol improves mood, especially in solitude, is false; it may lead to substance use disorders.

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Alcohol's Expectation Effect

Like other psychoactive drugs, alcohol's effect depends heavily on the user's expectations. Believing alcohol will have an effect can create that effect, regardless of whether it was consumed.

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Barbiturates and their Effect

Barbiturates are tranquilizers that depress the nervous system; they often induce sleep or reduce anxiety, but in high doses can impair memory and judgment, and are dangerous if combined with alcohol.

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Barbiturates

Drugs that slow down the central nervous system, reducing anxiety but affecting memory and judgment.

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Opiates

Opium and its derivatives, such as heroin and morphine, that depress the nervous system, temporarily reducing pain and anxiety.

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Stimulants

Drugs that excite neural activity and speed up bodily functions.

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Nicotine

A highly addictive stimulant found in tobacco products.

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Addiction to Opiates

A long-term condition characterized by a craving for the drug, needing larger doses to feel the effect (tolerance), and unpleasant withdrawal symptoms (physical and psychological consequences).

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Tolerance (drugs)

The increasing amount of a drug needed to achieve the same effect, due to the body's adaptation.

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Withdrawal (drugs)

The unpleasant physical and psychological symptoms that occur when a person stops using a drug to which they are addicted.

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Epinephrine/Norepinephrine effect on appetite

Epinephrine and norepinephrine decrease appetite.

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Dopamine/Opioids effect on anxiety

Dopamine and opioids temporarily reduce anxiety and pain sensitivity.

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Nicotine's speed to the brain

Nicotine reaches the brain within 7 seconds, faster than intravenous heroin.

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Cigarette company target

Cigarette companies target teens to develop long-term customers.

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Smoking cessation rate

Fewer than 1 in 7 smokers who want to quit succeed each year.

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Smoking regret

Most smokers (over 85%) regret starting.

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Smoking quitting success

Half of all former smokers have quit, sometimes with support.

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Smoking cessation methods

Quitting abruptly ('cold turkey') or gradually are equally effective for some.

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Withdrawal Symptoms duration

Acute craving and withdrawal symptoms subside within six months.

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Relapse rate after one year

Relapse rate within one year is 10% for those who quit for a year.

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Smoking's correlation with health issues

Smoking is linked to higher depression, disability, and divorce rates.

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Cocaine's effect on neurotransmitters

Cocaine depletes dopamine, serotonin, and norepinephrine.

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Cocaine's effect on aggression

Cocaine can increase aggression in situations that trigger it.

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Cocaine-related dangers

Cocaine use can lead to emotional issues, seizures, and cardiac problems.

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Cocaine's psychological effects

Cocaine's impact depends on dosage, method, situation, and user's expectations.

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Methamphetamine's effect

Methamphetamine is a powerful stimulant with intense effects.

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Methamphetamine's effect

Methamphetamine triggers dopamine release, leading to heightened energy and euphoria, but also potential side effects like irritability and depression.

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Methamphetamine's long-term effect

Prolonged methamphetamine use can decrease baseline dopamine levels, causing ongoing depressed functioning.

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Amphetamines

Stimulants that accelerate body functions and lead to energy and mood changes.

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Ecstasy (MDMA)

A synthetic stimulant and mild hallucinogen that triggers dopamine release and prolongs serotonin's effects.

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Ecstasy's side effects

Ecstasy can cause dehydration, overheating, high blood pressure, and potential long-term damage to serotonin-producing neurons.

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Hallucinogens

Drugs that distort perception and create sensory experiences in the absence of external input.

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Near-death experience

An altered state of consciousness reported after a life-threatening event, sometimes similar to hallucinogenic experiences.

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Alcohol long-term effect (non-addiction)

Chronic alcohol use can lead to liver damage, such as cirrhosis, and increase the risk of certain cancers.

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Marijuana long-term effect (non-addiction)

Prolonged marijuana use can negatively impact memory and learning skills, affecting cognitive development and academic performance, especially during adolescence.

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Nicotine long-term effect (non-addiction)

Long-term nicotine use significantly increases the risk of developing cardiovascular diseases, like heart disease and stroke, leading to potentially serious health issues.

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Tolerance (drugs)

Increased drug dosage needed to achieve the same effect.

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Addiction (drugs)

Compulsive drug seeking and use despite negative consequences.

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Withdrawal (drugs)

Unpleasant discomfort when drug use stops.

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Depressant drug

Drug that slows down neural activity and body function.

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Alcohol's effect

Disinhibits, impairs judgment, disrupts memory, reduces self-control.

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Stimulant drug

Drug that excites neural activity and speeds up body functions.

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Nicotine's effect

Makes quitting smoking difficult, but repeated attempts often work.

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Hallucinogen drug

Distorts perceptions and evokes hallucinations.

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Marijuana effect

May cause disinhibition, euphoria, relaxation, but linked to potential risks.

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Drug tolerance

Need for a higher dose over time to feel the same effect.

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Alcohol use disorder

Characterized by tolerance, withdrawal, and a strong drive to continue drinking.

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LSD

A powerful hallucinogenic drug, also known as lysergic acid diethylamide.

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Albert Hofmann

A chemist who accidentally ingested LSD in 1943, experiencing its effects.

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THC

The major active ingredient in marijuana, triggering various effects, including mild hallucinations.

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Marijuana

A mild hallucinogen containing THC that affects perceptions and moods.

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Psychoactive drugs

Chemical substances that alter perceptions and moods.

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Substance use disorder

Experiencing continued craving and use despite significant disruption and/or physical risk.

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Study Notes

Hearing

  • Hearing, like other senses, is crucial for survival and adaptation, providing information and enabling relationships.
  • Hearing humanizes individuals; people seem more thoughtful, capable, and likable when heard than when read.
  • Hearing allows invisible communication through sound waves.
  • Hearing loss is an invisible disability, depriving individuals of shared experiences and leading to feelings of exclusion and potentially doubled risk of depression.
  • Humans hear a wide range of sounds, but best hear the range of the human voice.
  • We are sensitive to faint sounds (like a phone ping).
  • Our ancestors' survival depended on keen hearing for hunting and survival.
  • We are sensitive to variations in sound, recognizing unseen friends' voices instantly.
  • Hearing is incredibly fast, enabling responses at least ten times faster than visual responses.

The Stimulus Input: Sound Waves

  • Sound is created by air pressure waves; air molecules compress and expand, creating waves.
  • Our ears detect these pressure changes.
  • Sounds vary in pitch (high or low tones) determined by frequency/wavelength.
    • Shorter waves = higher frequency = higher pitch
    • Longer waves = lower frequency = lower pitch
  • Sounds vary in loudness determined by amplitude/height of waves.
    • Higher amplitude = louder sound
  • Sound intensity is measured in decibels (dB).
  • Zero dB is the absolute hearing threshold.
  • Every 10dB represents a tenfold increase in intensity.
  • Prolonged exposure to sounds above 85 dB can cause hearing loss.

The Ear

  • Sound waves cause the eardrum to vibrate.
  • The middle ear bones (hammer, anvil, and stirrup) amplify and transmit vibrations to the cochlea.
  • The cochlea is a fluid-filled, coiled tube in the inner ear.
  • Vibrations in the cochlear fluid cause ripples in the basilar membrane.
  • Hair cells on the basilar membrane bend in response to the ripples, creating electrical signals.
  • These signals are converted into neural impulses by the nerve cells that form the auditory nerve.
  • The auditory nerve transmits the signals to the thalamus and then to the auditory cortex in the temporal lobe.
  • Hair cells are extremely sensitive and fast, responding to vibrations as small as an atom-width deflection.
  • Cochlear hair cell damage or auditory nerve damage causes sensorineural hearing loss (nerve deafness).
  • Conduction hearing loss is caused by damage to the mechanical system that conducts sound waves to the cochlea.

Perceiving Loudness, Pitch, and Location

  • Loudness is interpreted by the number of activated hair cells.
  • Louder sounds activate more hair cells.
  • Place theory: Different pitches activate different places along the cochlea. High frequencies vibrate near the beginning, and low frequencies vibrate further along the membrane.
  • Frequency theory/Temporal theory: The rate of nerve impulses matches the frequency of the sound wave.
  • Volley principle: Neural cells fire in rapid succession to sense frequencies beyond the capacity of a single neuron.
  • Sound location is determined by intensity and time differences in sound arrival between the two ears.

Other Senses (Touch, Pain, Taste, Smell, Body Position/Movement)

(Note: The vast amount of information contained in this section was not summarized.)

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