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Questions and Answers
Which psychological approach focuses on observable behavior and external stimuli?
Which psychological approach focuses on observable behavior and external stimuli?
What is a primary strength of case studies in psychological research?
What is a primary strength of case studies in psychological research?
Which research method allows researchers to determine cause-and-effect relationships?
Which research method allows researchers to determine cause-and-effect relationships?
The evolutionary approach to psychology seeks to explain behavior through which of the following concepts?
The evolutionary approach to psychology seeks to explain behavior through which of the following concepts?
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Which of the following is a weakness of experimental methods in psychological research?
Which of the following is a weakness of experimental methods in psychological research?
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What does the social-cultural approach in psychology examine?
What does the social-cultural approach in psychology examine?
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Which psychological perspective emphasizes free will and self-actualization?
Which psychological perspective emphasizes free will and self-actualization?
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Correlational studies are particularly useful when:
Correlational studies are particularly useful when:
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What is the primary function of NREM Stage 3 sleep?
What is the primary function of NREM Stage 3 sleep?
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Which imaging technique is primarily used to measure brain activity during tasks?
Which imaging technique is primarily used to measure brain activity during tasks?
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What does the term 'circadian rhythm' refer to?
What does the term 'circadian rhythm' refer to?
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What common effect can result from sleep deprivation?
What common effect can result from sleep deprivation?
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Which of the following brain imaging techniques uses radio waves and magnetic fields?
Which of the following brain imaging techniques uses radio waves and magnetic fields?
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Which of the following is NOT a part of the sensory adaptation process?
Which of the following is NOT a part of the sensory adaptation process?
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Which theory suggests that dreams are a way to process and incorporate new information?
Which theory suggests that dreams are a way to process and incorporate new information?
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In vision, which part of the eye is responsible for regulating the amount of light that enters?
In vision, which part of the eye is responsible for regulating the amount of light that enters?
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During which stage of sleep do most vivid dreams occur?
During which stage of sleep do most vivid dreams occur?
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What is the characteristic brainwave pattern during the waking state?
What is the characteristic brainwave pattern during the waking state?
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What is an example of the absolute threshold?
What is an example of the absolute threshold?
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What does Weber’s Law state concerning perception of differences between stimuli?
What does Weber’s Law state concerning perception of differences between stimuli?
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What role do rods play in vision?
What role do rods play in vision?
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How does convergence affect the perception of distance?
How does convergence affect the perception of distance?
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What is the role of the semicircular canals in the vestibular system?
What is the role of the semicircular canals in the vestibular system?
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Which of the following describes the function of otolith organs?
Which of the following describes the function of otolith organs?
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Which taste is associated with sugars and energy-rich compounds?
Which taste is associated with sugars and energy-rich compounds?
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What does gate control theory suggest about pain perception?
What does gate control theory suggest about pain perception?
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In sensory interaction, how do taste and smell work together?
In sensory interaction, how do taste and smell work together?
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Which of the following is NOT one of the five major tastes humans can detect?
Which of the following is NOT one of the five major tastes humans can detect?
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What is sensory adaptation?
What is sensory adaptation?
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What involves the inward movement of the eyes when focusing on nearby objects?
What involves the inward movement of the eyes when focusing on nearby objects?
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Which theory links pitch perception to the location of stimulation on the cochlea’s membrane?
Which theory links pitch perception to the location of stimulation on the cochlea’s membrane?
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How does the vestibular system contribute to balance?
How does the vestibular system contribute to balance?
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What effect describes failure to notice an unexpected stimulus in one's visual field?
What effect describes failure to notice an unexpected stimulus in one's visual field?
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What is the primary function of the vestibular nerve?
What is the primary function of the vestibular nerve?
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What does selective attention allow us to do?
What does selective attention allow us to do?
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Which phenomenon illustrates the ability to focus on a single auditory stimulus amidst many sounds?
Which phenomenon illustrates the ability to focus on a single auditory stimulus amidst many sounds?
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What best describes inattentional blindness?
What best describes inattentional blindness?
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How does size constancy function in perception?
How does size constancy function in perception?
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Which scenario is an example of color constancy?
Which scenario is an example of color constancy?
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What is the impact of framing on decision making?
What is the impact of framing on decision making?
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What is meant by priming in psychological terms?
What is meant by priming in psychological terms?
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How does perceptual set influence our interpretation of stimuli?
How does perceptual set influence our interpretation of stimuli?
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What is an example of change blindness?
What is an example of change blindness?
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What is framing primarily focused on in perception?
What is framing primarily focused on in perception?
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What is a primary strength of survey research?
What is a primary strength of survey research?
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What could be a significant weakness of longitudinal studies?
What could be a significant weakness of longitudinal studies?
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How do random assignment and random sampling differ?
How do random assignment and random sampling differ?
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What defines a double-blind study?
What defines a double-blind study?
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What is the best example of confirmation bias?
What is the best example of confirmation bias?
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What is the primary focus of applied research in psychology?
What is the primary focus of applied research in psychology?
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What does statistical significance imply in research?
What does statistical significance imply in research?
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Which nervous system response is primarily responsible for the body's reactions during a perceived threat?
Which nervous system response is primarily responsible for the body's reactions during a perceived threat?
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Under what condition can deception be used in psychological research?
Under what condition can deception be used in psychological research?
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What is the role of dendrites in a neuron?
What is the role of dendrites in a neuron?
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What defines the median in measures of central tendency?
What defines the median in measures of central tendency?
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What occurs during the depolarization phase of a neuron's action potential?
What occurs during the depolarization phase of a neuron's action potential?
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What is the primary function of neurotransmitters?
What is the primary function of neurotransmitters?
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What is a common effect of the Hawthorne effect in research?
What is a common effect of the Hawthorne effect in research?
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What is the primary function of cones in the retina?
What is the primary function of cones in the retina?
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Which of the following best describes inhibitory neurotransmitters?
Which of the following best describes inhibitory neurotransmitters?
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What distinguishes applied research from basic research?
What distinguishes applied research from basic research?
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Which theory proposes that color vision is based on three types of receptors in the retina?
Which theory proposes that color vision is based on three types of receptors in the retina?
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What is the function of control variables in an experiment?
What is the function of control variables in an experiment?
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How does the sympathetic nervous system affect heart rate?
How does the sympathetic nervous system affect heart rate?
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What cue suggests that objects appearing smaller are perceived as farther away?
What cue suggests that objects appearing smaller are perceived as farther away?
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Which example best represents a negative skew distribution?
Which example best represents a negative skew distribution?
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Which aspect of sound waves is primarily responsible for determining loudness?
Which aspect of sound waves is primarily responsible for determining loudness?
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What characterizes the all-or-nothing principle in neuronal firing?
What characterizes the all-or-nothing principle in neuronal firing?
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How does the brain interpret the signals received from the auditory nerve?
How does the brain interpret the signals received from the auditory nerve?
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What is the role of the myelin sheath in a neuron?
What is the role of the myelin sheath in a neuron?
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Which of the following is a crucial ethical requirement in psychological research?
Which of the following is a crucial ethical requirement in psychological research?
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What happens to neurotransmitters after they are released into the synaptic cleft?
What happens to neurotransmitters after they are released into the synaptic cleft?
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Which of the following is an example of a monocular cue for depth perception?
Which of the following is an example of a monocular cue for depth perception?
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In the context of hypothesis formulation, what represents an independent variable (IV)?
In the context of hypothesis formulation, what represents an independent variable (IV)?
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What occurs at the level of hair cells in the cochlea?
What occurs at the level of hair cells in the cochlea?
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What effect does serotonin primarily influence?
What effect does serotonin primarily influence?
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What is a key characteristic of the parasympathetic nervous system?
What is a key characteristic of the parasympathetic nervous system?
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Which queue describes how shading and shadows contribute to depth perception?
Which queue describes how shading and shadows contribute to depth perception?
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What is the role of the optic nerve in vision?
What is the role of the optic nerve in vision?
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Which neurotransmitter is primarily linked to the reward system and voluntary movement?
Which neurotransmitter is primarily linked to the reward system and voluntary movement?
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How is the resting potential of a neuron characterized?
How is the resting potential of a neuron characterized?
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Which perception mechanism is primarily utilized when both eyes are used?
Which perception mechanism is primarily utilized when both eyes are used?
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What are the possible effects of a deficit of GABA?
What are the possible effects of a deficit of GABA?
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Which type of vision is most sensitive to low light levels?
Which type of vision is most sensitive to low light levels?
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Which depth perception cue involves the brain utilizing the slight differences in images from each eye?
Which depth perception cue involves the brain utilizing the slight differences in images from each eye?
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What color is perceived when long wavelengths of light are present?
What color is perceived when long wavelengths of light are present?
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Which of the following statements is true regarding both rods and cones?
Which of the following statements is true regarding both rods and cones?
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What is a primary function of norepinephrine in the body?
What is a primary function of norepinephrine in the body?
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Which of the following is an effect of excessive glutamate in conjunction with low GABA levels?
Which of the following is an effect of excessive glutamate in conjunction with low GABA levels?
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Select the statements that accurately describe SSRIs.
Select the statements that accurately describe SSRIs.
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What role does the amygdala play in the limbic system?
What role does the amygdala play in the limbic system?
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How does an antagonist function in relation to neurotransmitters?
How does an antagonist function in relation to neurotransmitters?
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Which of the following drugs is classified as a stimulant?
Which of the following drugs is classified as a stimulant?
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What is a characteristic of addiction?
What is a characteristic of addiction?
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What does tolerance to a drug indicate?
What does tolerance to a drug indicate?
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Which of the following areas is involved in language production?
Which of the following areas is involved in language production?
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What is neural plasticity?
What is neural plasticity?
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Which area is known as the brain's sensory switchboard?
Which area is known as the brain's sensory switchboard?
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What is a common effect of depressants on the central nervous system?
What is a common effect of depressants on the central nervous system?
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In the context of drug categories, which of the following is an example of a hallucinogen?
In the context of drug categories, which of the following is an example of a hallucinogen?
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Study Notes
Unit 1 Review: Psychological Approaches and Research Methods
-
Psychological Approaches:
- Biological: Behavior is rooted in physical processes (brain, hormones, chemicals).
- Evolutionary: Explains behavior through natural selection's impact on variable traits.
- Behavior Genetics: Studies how genes impact psychological traits (cognition, personality, illness, attitudes).
- Psychoanalytic/Psychodynamic: Focuses on the unconscious mind and past experiences.
- Behavioral: Observing observable behaviors and environmental influences.
- Cognitive: Emphasizes mental processes (thinking, perception, memory). Thoughts influence emotions and behaviors.
- Humanistic: Studies the whole individual, emphasizing free will, efficacy, and self-actualization.
- Social-Cultural: Examines how behavior and thought vary across cultures and situations.
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Research Methods:
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Case Study: In-depth analysis of a person, group, or phenomenon.
- Strengths: Detailed information.
- Weaknesses: Cannot generalize, hard to replicate, time-consuming.
- Example: Phineas Gage.
-
Experiment: Manipulating an independent variable and observing its effect on a dependent variable.
- Strengths: Determines cause and effect, can be replicated.
- Weaknesses: Artificial environment, possible ethical issues, impacting realism.
-
Correlational Study: Examining the relationship between variables when experiments aren't feasible.
- Example: Studying the relationship between school grades and Adderall usage.
- Strengths: Easier to conduct.
- Weaknesses: Cannot determine cause and effect.
-
Survey Research: Collecting information through questionnaires, interviews, and focus groups.
- Strengths: Cost-effective and efficient.
- Weaknesses: Low response rates, accuracy of responses uncertain.
-
Naturalistic Observation: Observing behavior in a natural setting.
- Strengths: Real-world setting.
- Weaknesses: Observer effect (participants behave differently knowing they are watched).
-
Longitudinal Study: Tracking the same individuals over an extended period (years to decades).
- Strengths: Shows changes over time.
- Weaknesses: Time-consuming and expensive.
-
Cross-sectional Study: Examining different groups at the same time.
- Strengths: Quick, generalizable results
- Weaknesses: Difficult to isolate single factors, cannot show change over time.
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Case Study: In-depth analysis of a person, group, or phenomenon.
Defining Psychological Science: The Experimental Method
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Hypothesis: Educated guess about cause and effect.
- Example: High caffeine consumption correlates with higher intelligence.
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Independent Variable (IV): Variable manipulated by the researcher.
- Example: Levels of caffeine.
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Dependent Variable (DV): Variable measured.
- Example: Test scores.
-
Confounding Variable: Outside influences that affect the DV and IV interaction.
- Example: Amount of sleep.
- Control Variable: Kept constant to isolate cause-and-effect.
Key Concepts in Research
- Random Assignment: Assigning participants to groups randomly, equal chances.
- Random Sampling: Each individual has equal chance of participation.
- Bias: Influences that skew results, negatively impacting reliability.
- Single-Blind Study: Participants unaware of group assignment.
- Double-Blind Study: Neither participants nor researchers know group assignments.
- Hindsight Bias: Believing you knew the outcome beforehand.
- Confirmation Bias: Favoring information that confirms existing beliefs.
- Overconfidence: Overestimating accuracy of judgments.
Descriptive Statistics
-
Measures of Central Tendency:
- Mean: Average of scores.
- Median: Middle score in a distribution.
- Mode: Most frequently occurring score.
- Skewed Distributions: Positive skew (tail to the right), negative skew (tail to the left), normal distribution (bell curve).
Inferential Statistics
- Statistical Significance: Likelihood that results are due to the independent variable.
Ethical Considerations in Research
- Informed Consent: Participants understand the study and agree to participate.
- Protection from Harm: Avoiding physical and psychological harm to participants.
- Confidentiality: Protecting participants' personal information.
- Debriefing: Explaining the study's purpose after data collection.
Research Types
- Basic Research: Increases scientific knowledge base, focuses on theory.
- Applied Research: Addresses practical problems and applies knowledge to real-world situations.
Unit 2 Review: Biological Basis of Behavior
- Nervous System: Central (brain and spinal cord), Peripheral (nerves branching out), Somatic (voluntary muscles), Autonomic (involuntary functions, including sympathetic and parasympathetic).
- Neurons: Dendrites (receive signals), Soma (cell body), Axon (transmits signals), Myelin Sheath (speeds transmission), Axon Terminals (release signals).
- Action Potential: "All-or-Nothing" process – Depolarization (sodium influx), Repolarization (sodium channels close, potassium exits). Refractory Period, Resting Potential, Reuptake.
Neurotransmitters and Hormones
- Neurotransmitters: Chemical messengers in the nervous system. Examples: Dopamine (reward, movement), Serotonin (mood), Norepinephrine (arousal), Glutamate (excitatory), GABA (inhibitory), Endorphins (pain relief), Substance P (pain transmission), Acetylcholine (muscle action).
- Hormones: Chemical messengers in the bloodstream. Examples: many (e.g., thyroid, insulin).
- Agonists: Increase neurotransmitter availability.
- Antagonists: Decrease neurotransmitter availability.
Brain Structure and Function
- Cerebral Cortex: Higher-level functions (thought, language, memory).
- Limbic System: Emotions and motivations (amygdala, hippocampus, hypothalamus).
- Brainstem: Basic life functions (medulla, pons, reticular formation).
Sleep and Consciousness
- Circadian Rhythm: Internal 24-hour biological clock.
- Stages of Sleep: NREM 1-3 (light to deep sleep) and REM (dreaming).
Unit 3 Review: Sensation and Perception
- Sensation: Detecting physical stimuli.
- Perception: Organizing and interpreting sensory information.
- Sensation & Perception Processes: Absolute threshold, difference threshold, sensory adaptation, Weber's Law, Transduction (converting stimuli to neural signals).
Sensory Systems
- Vision: Light processing in the eye (cornea, pupil, lens, retina, rods, cones, optic nerve). Concepts of wavelength (hue), intensity (brightness), and amplitude in context of visual processing.
- Audition (Hearing): Sound wave processing (pinna, ear canal, eardrum, ossicles, cochlea, auditory nerve). Understanding concepts of wavelength (pitch), intensity (loudness), and amplitude in context of auditory processing.
Theories of Color Vision
- Trichromatic Theory: Three types of cones detect colors (red, green, blue).
- Opponent-Process Theory: Pairs of colors (red-green, yellow-blue, black-white) work in opposition.
Depth Perception
- Monocular Cues: Depth perception from one eye (relative size, interposition, relative height, relative motion, linear perspective, light and shadow, texture gradient).
- Binocular Cues: Depth perception from both eyes (retinal disparity, convergence).
Gestalt Principles
- Explain the rules govern how individuals view and interpret shapes and forms.
Perceptual Constancy
- Perceptual Constancy: Recognize objects despite variations in sensory input (size, shape, color).
Perceptual Processing
- Selective Attention: Focusing on specific stimuli.
- Inattentional Blindness: Failure to perceive unexpected stimuli due to attentional limitations.
- Cocktail Party Effect: Focusing on one conversation while filtering out others.
- Change Blindness: Inability to detect changes in a scene.
- Perceptual Set: Mental predisposition to perceive things in specific ways (influenced by experiences, context).
Pain Perception
- Gate-Control Theory: Non-painful sensations can reduce pain perception.
Sensory Interaction
- Taste and smell interact to create flavor perception.
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Description
Test your understanding of key concepts in Psychology, specifically focusing on research methods, psychological approaches, and their strengths and weaknesses. This quiz will challenge your knowledge units 1-3 of AP Psych