States of Consciousness and Sleep Patterns
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Questions and Answers

During which stage of sleep do individuals experience a significant reduction in muscle tension and core body temperature?

  • Stage 2
  • Stage 4
  • Stage 1 (correct)
  • REM Sleep
  • What is the primary characteristic that differentiates the four stages of non-REM sleep?

  • Frequency of brain waves (correct)
  • Duration of each stage
  • Presence of K-complexes
  • Amount of muscle activity
  • Which stage of sleep is associated with the appearance of sleep spindles?

  • Stage 3
  • Stage 2 (correct)
  • Stage 1
  • Stage 4
  • What is the primary function of K-complexes in sleep?

    <p>Responding to environmental stimuli (D)</p> Signup and view all the answers

    Which two stages of sleep are collectively known as deep sleep or slow-wave sleep?

    <p>Stage 3 &amp; Stage 4 (C)</p> Signup and view all the answers

    What is the primary characteristic that distinguishes REM sleep from the other stages of sleep?

    <p>Rapid eye movements (D)</p> Signup and view all the answers

    Which stage of sleep is most difficult to wake up from?

    <p>Stage 3 (C)</p> Signup and view all the answers

    Which of these is NOT a characteristic of REM sleep?

    <p>Increased muscle tension (C)</p> Signup and view all the answers

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

    <p>Predominance of delta waves (C)</p> Signup and view all the answers

    What is the primary neurotransmitter affected by alcohol, barbiturates, and benzodiazepines?

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

    Which of the following is a sleep disorder characterized by an irresistible urge to fall asleep during waking hours?

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

    What is the primary function of sleep spindles and K-complexes?

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

    Which of the following substances is a central nervous system stimulant that affects dopamine neurotransmission?

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

    What is the defining characteristic of substance use disorder according to DSM-5?

    <p>Using a substance in larger amounts or over a longer period than intended (D)</p> Signup and view all the answers

    Which of the following is NOT a type of parasomnia?

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

    What type of brain waves are most prominent during stage 3 and stage 4 sleep?

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

    What is a biological rhythm exemplified by a woman's menstrual cycle?

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

    What is the primary function of the suprachiasmatic nucleus (SCN) in the brain?

    <p>Controlling the sleep-wake cycle (A)</p> Signup and view all the answers

    How long does a typical circadian rhythm last?

    <p>24 hours (B)</p> Signup and view all the answers

    Which of the following is NOT typically influenced by circadian rhythms?

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

    What general term describes the body's tendency to maintain a stable internal environment?

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

    What primarily regulates the variations of biological rhythms such as the sleep-wake cycle?

    <p>Natural light-dark cycle (B)</p> Signup and view all the answers

    Which type of sleep is characterized by the absence of rapid eye movement?

    <p>Non-REM sleep (D)</p> Signup and view all the answers

    What term describes a deficit in sleep quantity or quality that can build up over time?

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

    What is a characteristic symptom required for diagnosing insomnia?

    <p>Presence of sleep difficulty at least three nights per week (B)</p> Signup and view all the answers

    Which of the following is NOT a cause of insomnia mentioned?

    <p>Consuming large amounts of water (C)</p> Signup and view all the answers

    What type of parasomnia involves individuals physically acting out their dreams?

    <p>REM sleep behavior disorder (D)</p> Signup and view all the answers

    Which of these is a symptom of sleep paralysis?

    <p>Inability to move when waking up (C)</p> Signup and view all the answers

    What is true about sleep terrors?

    <p>They can cause significant arousal during sleep (D)</p> Signup and view all the answers

    Which of the following can be a factor contributing to insomnia?

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

    What condition is characterized by vivid dreams that cause fear or terror?

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

    How long must sleep difficulties persist for insomnia to be diagnosed?

    <p>At least one month (B)</p> Signup and view all the answers

    What type of disorder is commonly associated with methamphetamine use?

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

    Which of the following ingredients is commonly used in making methamphetamine?

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

    What is a common effect of opioids?

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

    How do many users seek to experience the effects of cocaine and amphetamines?

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

    Which statement about nicotine is true?

    <p>It is associated with increased health risks (C)</p> Signup and view all the answers

    What is one primary characteristic of hypnosis?

    <p>Extreme self-focus and attention (B)</p> Signup and view all the answers

    Which drug category is associated with profound alterations in sensory and perceptual experiences?

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

    In which states is the recreational use of marijuana now legal?

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

    What is a common lifestyle change recommended for shift workers?

    <p>Make adjustments to the work schedule (D)</p> Signup and view all the answers

    Which of the following is a risk factor for Sleep Apnea?

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

    What is a potential consequence of Obstructive Sleep Apnea?

    <p>Blocked airway during sleep (B)</p> Signup and view all the answers

    What is a common method of treatment for Sleep Apnea?

    <p>Continuous Positive Airway Pressure (CPAP) (C)</p> Signup and view all the answers

    How can SIDS be potentially prevented during infant sleep?

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

    Which factor is NOT associated with SIDS risk?

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

    What can be one of the symptoms associated with Sleep Apnea?

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

    What behavior should be avoided around a sleeping baby to reduce the risk of SIDS?

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

    Flashcards

    Consciousness

    The state of being aware of and responsive to one's surroundings.

    Circadian Rhythms

    Naturally occurring physical and mental cycles that regulate bodily functions over roughly 24 hours.

    Homeostasis

    The biological process of maintaining a stable internal environment.

    Suprachiasmatic Nucleus (SCN)

    A cluster of nerve cells in the hypothalamus that acts as the brain's internal clock.

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    Sleep Debt

    The difference between the amount of sleep needed and the amount of sleep actually obtained.

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    REM Sleep

    A stage of sleep characterized by rapid eye movements, vivid dreams, and muscle paralysis.

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    Non-REM Sleep

    Stages of sleep that are not characterized by rapid eye movements, vivid dreams, or muscle paralysis.

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    Sleep Disorder

    A disorder that affects the ability to sleep, causing problems with sleep initiation, maintenance, or quality.

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    Non-REM (NREM) sleep

    Sleep stages where the brain activity slows down, heart rate and respiration decrease, and it is harder to wake someone up.

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    Stage 1 sleep

    A stage of sleep marked by decreased muscle tension, core body temperature, and a transition from wakefulness to sleep.

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    Stage 2 sleep

    A stage of deep relaxation where brain waves show theta activity and are interrupted by sleep spindles.

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    Sleep spindle

    A rapid burst of higher frequency brain waves during stage 2 sleep, possibly important for learning and memory.

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    K-complex

    A very high amplitude brain wave pattern that can occur in response to stimuli during stage 2 sleep.

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    Deep sleep/Slow-wave sleep

    Stages 3 and 4 of sleep, characterized by delta waves, slow breathing and heart rate, and deep relaxation.

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    Stage 3 and 4 sleep

    A stage of sleep where an individual is typically more difficult to awaken due to decreased heart rate and respiration and the presence of delta waves.

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    What is Insomnia?

    A sleep disorder making it difficult to fall asleep, stay asleep, wake up early, or go back to sleep.

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    What causes Insomnia?

    Stress, work schedule issues, poor sleep habits, late-night eating, medications, mental health issues, and caffeine, nicotine, and alcohol consumption.

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    What are Nightmares?

    A sleep disorder where individuals experience vivid dreams that cause feelings of fear, terror, and anxiety.

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    What is Sleep Paralysis?

    A sleep disorder where individuals can't move their body or limbs while falling asleep or waking up.

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    What is REM sleep behavior disorder?

    A sleep disorder where individuals act out their dreams during REM sleep.

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    What are disorders of arousal?

    A sleep disorder that arises during the sleep-wake transition and occurs during non-rapid eye movement (NREM) sleep.

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    What are Sleep Terrors?

    A sleep disorder that causes sudden awakenings with fear, panic, and confusion, often accompanied by screaming or thrashing.

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    What is a REM Parasomnia?

    A sleep disorder that involves physically acting out your dreams during REM sleep.

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    Sleep and Hormones

    Hormones essential for physical growth and maturation are released during this sleep stage.

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    Insomnia

    A common sleep disorder characterized by difficulty falling or staying asleep.

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    Parasomnias

    Unwanted motor behavior or experiences during sleep, including sleepwalking, night terrors, and restless leg syndrome.

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    Sleep Apnea

    A sleep disorder characterized by repeated pauses in breathing during sleep.

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    Narcolepsy

    An irresistible urge to fall asleep during waking hours, often accompanied by cataplexy and hallucinations.

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    Substance Use Disorder

    A compulsive pattern of drug use despite negative consequences, involving both physical and psychological dependence.

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    Central Nervous System Depressants

    Drugs that suppress the central nervous system, affecting GABA neurotransmission.

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    What is Sleep Apnea?

    A potentially serious sleep disorder where breathing repeatedly stops and starts, causing disruptions in sleep and affecting overall health.

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    What is Obstructive Sleep Apnea?

    Occurs when an individual's airway becomes blocked during sleep, usually due to relaxed throat muscles obstructing airflow.

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    What is Central Sleep Apnea?

    Occurs when the brain doesn't send proper signals to the muscles that control breathing, leading to pauses in breathing during sleep.

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    What is a CPAP machine used for?

    A device that provides continuous positive airway pressure (CPAP) through a mask worn over the nose and mouth, keeping the airway open during sleep.

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    What is Sudden Infant Death Syndrome (SIDS)?

    A mysterious syndrome in which an infant unexpectedly stops breathing during sleep and dies. The exact cause remains unknown.

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    How to prevent SIDS?

    To prevent SIDS, it is recommended to place the baby on his back to sleep, remove loose blankets and stuffed animals from the crib, avoid overheating the baby or his room during sleep, and never allow anyone to smoke around the baby.

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    What is Substance Use Disorder?

    A disorder characterized by a compulsive pattern of drug use, often associated with physical and psychological dependence. Withdrawal symptoms can occur when drug use is discontinued.

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    How can you help prevent sleep apnea?

    Maintaining a healthy weight, exercising regularly, avoiding alcohol and smoking, and adopting a balanced lifestyle can help reduce risks associated with sleep apnea.

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    Hypnosis

    A state where a person is highly focused, easily suggestible, and minimally attentive to external stimuli, often induced by a hypnotist.

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    Opioids

    A group of drugs that includes heroin, morphine, methadone, and codeine. These drugs primarily affect the nervous system and can reduce pain.

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    Methamphetamine

    A type of stimulant drug that can be made from readily available ingredients and is highly addictive. It can cause a range of negative side effects like paranoia and aggression.

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    Meditation

    This is the act of focusing your attention on a single point, like your breath or a sound, to increase your awareness of the present moment.

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    Stimulants

    A group of drugs, including cocaine, amphetamines, cathinones, and MDMA. These drugs create feelings of euphoric high, especially when taken intravenously or smoked.

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    Hallucinogens

    A drug that belongs to a category that causes significant changes in sensory experiences and perceptions. They can induce hallucinations and altered states of consciousness.

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    Pseudoephedrine

    A chemical found in many over-the-counter cold and flu medicines. This compound is a key ingredient in the illegal production of methamphetamine.

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    Nicotine

    A type of drug that includes nicotine, which is found in tobacco products. It's highly addictive and leads to health problems like heart disease and cancer.

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    Study Notes

    States of Consciousness

    • Consciousness is awareness of internal and external stimuli
    • Biological rhythms: Internal patterns of biological activity, like the menstrual cycle, which reoccur
    • Circadian rhythm: A 24-hour biological cycle, linked to the light-dark cycle (sleep-wake cycle, heart rate, blood pressure, blood sugar, body temperature)
    • Homeostasis: Maintaining balance within a biological system
    • Suprachiasmatic Nucleus (SCN): Brain's internal clock, located in the hypothalamus; receives light information from the retina to synchronize with the outside world

    Disruptions of Normal Sleep

    • Jet lag: Symptoms from mismatch of internal circadian rhythms and environment
    • Rotating shift work: Work schedules changing from early to late.
    • Sleep debt: Insufficient chronic sleep

    Sleep

    • Sleep rebound: Shorter time to fall asleep after sleep deprivation
    • Evolutionary psychology: Studies how universal patterns of behavior and cognitive processes have evolved over time
    • Stages of sleep: NREM and REM
      • Stage 1: Transitional between wakefulness and sleep
      • Stage 2: Deeper relaxation (Theta waves, sleep spindles, K-complexes)
      • Stages 3 & 4 (NREM): Deep/slow-wave sleep (Delta waves), crucial for physical recovery, learning, and memory.
      • REM: Similar brain waves to wakefulness, characterized by rapid eye movements, muscle paralysis, and dreaming

    Sleep Problems and Disorders

    • Insomnia: Difficulty falling/staying asleep, or waking up too early
    • How to Diagnose Insomnia: Symptoms must be present for at least 3 nights a week for at least a month.
    • Causes of Insomnia: Stress, irregular sleep schedule, diet, medications, anxiety or depression, medical conditions, nicotine and caffeine, alcohol.
    • How to Prevent Insomnia: Consistent bedtime and wake times, regular exercise, medication review, avoiding caffeine and alcohol/nicotine before bed time.
    • Parasomnias: Disruptive sleep disorders during arousals from REM or NREM sleep, including:
      • REM parasomnias: Acting out dreams (nightmares, sleep paralysis, REM sleep behavior disorder)
      • Non-REM parasomnias: Arousal disorders (sleep terrors/night terrors, sleepwalking, confusional arousals).
    • Sleep Apnea: Breathing stops and starts during sleep
      • Obstructive Sleep Apnea: Airway blockage
      • Central Sleep Apnea: Brain's signals to control breathing are disrupted
    • Sudden Infant Death Syndrome (SIDS): Infant stops breathing during sleep, and dies, often unexplained

    Altering States of Consciousness

    • Narcolepsy: Excessive sleepiness
    • Caffeine: Stimulant, increased alertness and arousal
    • Nicotine: Highly addictive, increased heart disease risk, stroke
    • Opioids: Analgesic (pain-relieving) properties; includes heroin, morphine, methadone, codeine
    • Hallucinogens: Altered sensory and perceptual experiences
    • Medical Marijuana: Legal in some states for limited quantities, with implications for recreational use.
    • Hypnosis: Extreme self-focus, minimal attention to external stimuli.

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    Description

    Explore the intricacies of consciousness, biological rhythms, and the impact of disruptions on sleep. This quiz covers key concepts such as circadian rhythms, homeostasis, and sleep debt, providing insights into how these elements influence our daily lives. Test your understanding of these critical psychological topics.

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