Quiz To Test Your Knowledge On Sleep

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| By Brain And Behavi
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Quiz To Test Your Knowledge On Sleep - Quiz

When we sleep the slowed brain waves, relaxed muscles and deep breathing may help the brain and body to recuperate after a long day. How much do you understand about the benefits of sleeping and how it helps out brains? Test your understanding on sleep via this quick quiz below.


Questions and Answers
  • 1. 

     The ________ pattern of EEG activity is characterized by irregular, high -frequency (13-30 Hz), low-amplitude waves.

    • A.

      Beta

    • B.

      Delta

    • C.

      Theta

    • D.

      Sleep spindle

    • E.

      Alpha

    Correct Answer
    A. Beta
    Explanation
    The correct answer is beta. The beta pattern of EEG activity is characterized by irregular, high-frequency (13-30 Hz), low-amplitude waves.

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  • 2. 

     A person whose brain waves contain high-amplitude delta waves is most likely

    • A.

      In either stage 3 or stage 4 of slow-wave sleep

    • B.

      In stage 1 of slow-wave sleep

    • C.

      Dreaming

    • D.

      In stage 2 of slow-wave sleep

    • E.

      Awake

    Correct Answer
    A. In either stage 3 or stage 4 of slow-wave sleep
    Explanation
    A person whose brain waves contain high-amplitude delta waves is most likely in either stage 3 or stage 4 of slow-wave sleep. Delta waves are associated with deep sleep, and stages 3 and 4 are characterized by the presence of these slow, high-amplitude waves. These stages are also known as slow-wave sleep or deep sleep, where the body and brain undergo restorative processes such as tissue repair and hormone release.

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  • 3. 

    All of the following are characteristics of REM sleep EXCEPT

    • A.

      Alternating delta and beta EEG activities

    • B.

      Loss of muscle tonus

    • C.

      Presence of beta wave EEG activity

    • D.

      Occasional twitching

    • E.

      Rapid eye movements

    Correct Answer
    A. Alternating delta and beta EEG activities
    Explanation
    REM sleep is characterized by rapid eye movements, loss of muscle tonus, occasional twitching, and the presence of beta wave EEG activity. However, it is not characterized by alternating delta and beta EEG activities. Delta waves are usually associated with deep sleep, while beta waves are associated with wakefulness and alertness. Therefore, the absence of alternating delta and beta EEG activities is a characteristic of REM sleep.

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  • 4. 

    Which of the following is true of the sleep cycle during a night of sleep?

    • A.

      Each non-REM/REM cycle lasts about 45 minutes

    • B.

      Subjects first enter REM sleep and then transition to non-REM sleep

    • C.

      As the night goes on, the relative length of REM sleep increases in each successive cycle

    • D.

      Stages 3 and 4 of slow wave sleep mostly occur in the early morning hours

    • E.

      Sleep cycles are random across the night

    Correct Answer
    C. As the night goes on, the relative length of REM sleep increases in each successive cycle
    Explanation
    As the night goes on, the relative length of REM sleep increases in each successive cycle. This means that as the night progresses, the amount of time spent in REM sleep, which is associated with dreaming and high brain activity, becomes longer in each sleep cycle. This is a normal pattern of sleep, with the first REM period typically lasting about 10 minutes and the final REM period lasting about an hour.

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  • 5. 

    Which of the following is true of sleeping medications?

    • A.

      Sleeping pills can lead to severe insomnia

    • B.

      Insomnia is a disease that is treated easily using drugs

    • C.

      Sleeping pills directly alter the cause of insomnia

    • D.

      Modern sleeping pills can lead to daytime grogginess

    • E.

      All of the above

    Correct Answer
    A. Sleeping pills can lead to severe insomnia
    Explanation
    Sleeping pills can lead to severe insomnia because they can disrupt the natural sleep-wake cycle and cause dependence. While they may initially help with sleep, long-term use can actually worsen insomnia and make it more difficult to fall asleep without medication. Therefore, it is true that sleeping pills can lead to severe insomnia.

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  • 6. 

    Which statement about sleep is false?

    • A.

      REM sleep patterns are similar in all species

    • B.

      Sleep is a useful behavior

    • C.

      Everyone dreams

    • D.

      All vertebrates show sleep

    • E.

      Mammals and birds show signs of REM sleep

    Correct Answer
    A. REM sleep patterns are similar in all species
    Explanation
    The statement "REM sleep patterns are similar in all species" is false. While REM sleep is observed in many species, the patterns and characteristics of REM sleep can vary across different species. For example, humans and other mammals experience REM sleep, characterized by rapid eye movement and vivid dreaming. However, not all species exhibit REM sleep, and even among those that do, the duration and intensity of REM sleep can differ. Therefore, the statement that REM sleep patterns are similar in all species is incorrect.

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  • 7. 

    Healthy subjects who spent six weeks in bed exhibited

    • A.

      No change in REM of slow-wave sleep

    • B.

      REM sleep patterns similar to that of depression

    • C.

      Decreased slow-wave sleep

    • D.

      A significant reduction in total sleep time

    • E.

      Signs of REM-sleep behavior disorder

    Correct Answer
    A. No change in REM of slow-wave sleep
    Explanation
    During the six weeks of bed rest, the healthy subjects did not experience any change in their REM (Rapid Eye Movement) sleep patterns. REM sleep is characterized by rapid eye movements, vivid dreaming, and increased brain activity. Slow-wave sleep, on the other hand, is a deep sleep stage associated with physical restoration and memory consolidation. The answer suggests that the subjects' slow-wave sleep was not affected either. This indicates that the prolonged bed rest did not alter the normal sleep architecture of the healthy individuals, specifically in terms of REM and slow-wave sleep.

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  • 8. 

    The firing rates of cells within the locus coeruleus

    • A.

      Are highest during REM sleep

    • B.

      Decrease during sleep and increase at awakening

    • C.

      Are unrelated to behavioral arousal

    • D.

      Are suppressed by sleeping medications

    • E.

      Alter EEG cortical arousal

    Correct Answer
    B. Decrease during sleep and increase at awakening
    Explanation
    The firing rates of cells within the locus coeruleus decrease during sleep and increase at awakening. This suggests that the locus coeruleus plays a role in regulating arousal and wakefulness. During sleep, when the body is in a restorative state, the firing rates of these cells decrease. However, upon awakening, the firing rates increase, promoting alertness and readiness to engage in wakeful activities. This pattern of firing rates aligns with the natural sleep-wake cycle and supports the idea that the locus coeruleus is involved in regulating behavioral arousal.

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  • 9. 

    Damage to the ventrolateral preoptic area would be expected to

    • A.

      Produce persistent REM sleep

    • B.

      Alter male reproductive behavior

    • C.

      Produce insomnia

    • D.

      Impair the control of temperature regulation

    • E.

      Reduce the symptoms of narcolepsy

    Correct Answer
    C. Produce insomnia
    Explanation
    Damage to the ventrolateral preoptic area would be expected to produce insomnia. The ventrolateral preoptic area is involved in the regulation of sleep and wakefulness. It is responsible for promoting sleep by inhibiting the wake-promoting areas of the brain. Damage to this area would disrupt the normal sleep-wake cycle and result in difficulty falling asleep or staying asleep, leading to insomnia.

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  • 10. 

    The first indicator of the onset of a REM sleep episode is

    • A.

      A rise in plasma glucose

    • B.

      Synchronized EEG activity

    • C.

      Rapid eye movements

    • D.

      PGO waves

    • E.

      Dreams

    Correct Answer
    D. PGO waves
    Explanation
    PGO waves, or Ponto-Geniculo-Occipital waves, are a characteristic electrical pattern observed in the brain during the onset of REM (Rapid Eye Movement) sleep. These waves originate from the Pons, Geniculate nucleus, and Occipital lobe, hence the name. PGO waves are associated with the activation of various brain regions involved in sensory processing and eye movement control. Therefore, the presence of PGO waves is considered the first indicator of the onset of a REM sleep episode. This electrical activity precedes the occurrence of rapid eye movements, dreams, and other physiological changes associated with REM sleep.

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  • 11. 

    Drugs that excite acetylcholine synapses in the peribrachial area would be expected to

    • A.

      Inhibit stage 4 sleep

    • B.

      Facilitate REM sleep

    • C.

      Promote wakefulness

    • D.

      Inhibit slow-wave sleep

    • E.

      Facilitate slow-wave sleep

    Correct Answer
    B. Facilitate REM sleep
    Explanation
    Drugs that excite acetylcholine synapses in the peribrachial area would be expected to facilitate REM sleep. Acetylcholine is known to play a crucial role in the regulation of REM sleep. Increased activity of acetylcholine in the brain promotes the occurrence of REM sleep, which is characterized by rapid eye movements and vivid dreaming. Therefore, drugs that enhance acetylcholine transmission in the peribrachial area would likely increase REM sleep duration and intensity.

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  • 12. 

    The muscular paralysis that accompanies REM sleep results from the activity of neurons within the ________ of the medulla that control the secretion of ________ in the spinal cord.

    • A.

      Preoptic area; acetylcholine

    • B.

      Magnocellular nucleus; GABA

    • C.

      Parvocellular nucleus; glutamate

    • D.

      Magnocellular nucleus; glycine

    • E.

      Lateral geniculate; glutamate

    Correct Answer
    D. Magnocellular nucleus; glycine
    Explanation
    During REM sleep, the brain sends signals to inhibit muscle movement, resulting in muscular paralysis. This inhibition is regulated by neurons within the magnocellular nucleus of the medulla. These neurons release the neurotransmitter glycine, which acts as an inhibitory neurotransmitter in the spinal cord. The release of glycine inhibits the transmission of signals from the spinal cord to the muscles, leading to the temporary paralysis experienced during REM sleep.

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  • 13. 

    Circadian rhythms are

    • A.

      Annual changes in behavior (such as bird migration)

    • B.

      Learned patters of daily activity

    • C.

      Non found in plants

    • D.

      Endogenous cycles of activity over the course of the day

    • E.

      Monthly cycles of reproductive activity

    Correct Answer
    D. Endogenous cycles of activity over the course of the day
    Explanation
    Circadian rhythms refer to endogenous cycles of activity that occur over the course of a day. These rhythms are internal and are not influenced by external factors. They regulate various biological processes such as sleep-wake cycles, hormone production, and metabolism. Unlike annual or monthly cycles, circadian rhythms occur on a daily basis and are present in both animals and humans. They play a crucial role in maintaining proper physiological and behavioral functions.

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  • 14. 

    Evaluate the hypothesis that sleep is a restorative process. Discuss the effects of sleep deprivation and physical and mental activity on sleep.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 11, 2009
    Quiz Created by
    Brain And Behavi
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