Question 1

People with REM behavior disorder:

Accepted Answer

A)   show intrusions of REM sleep into wakefulness.
B)   show bizarre behaviors while awake due to REM deprivation at night.
C)   enter REM sleep at unusual and unpredictable times.
D)   move vigorously during REM, apparently acting out their dreams.E) B) and C)
F) A) and C)

Question 2

In response to meaningful events, the locus coeruleus releases:

Accepted Answer

A)   norepinephrine.
B)   acetylcholine.
C)   dopamine.
D)   serotonin.E) A) and B)
F) A) and C)

Question 3

What is a likely consequence if someone's temperature rhythm is phase-delayed?

Accepted Answer

A)   waking up frequently during the night
B)   having problems going to sleep after losing your job
C)   difficulty falling asleep
D)   not breathing during the nightE) C) and D)
F) B) and C)

Question 4

Someone who considers herself a "morning person" should take college classes at what time of the day?

Accepted Answer

A)   right after lunch
B)   in the late evening
C)   early morning
D)   after sleep deprivationE) All of the above
F) A) and D)

Question 5

People with a mutation in their per gene are more likely to:

Accepted Answer

A)   wake up early.
B)   go to bed late.
C)   wake up late.
D)   have high melatonin levels.E) A) and D)
F) B) and C)

Question 6

How do sleep stages 3 and 4 differ?

Accepted Answer

A)   body position
B)   percentage of REM
C)   percentage of serotonin that is released
D)   percentage of slow, low amplitude wavesE) A) and B)
F) A) and C)

Question 7

Which of the following is TRUE concerning the duration of a self-generated sleep/activity cycle?

Accepted Answer

A)   It is unreliable in most species, and dependably close to 24 hours only in primates.
B)   It is longer if the organism is normally active in the dark.
C)   There is little or no variability from one individual to another.
D)   It is highly consistent in a given individual in a given environment.E) C) and D)
F) B) and D)

Question 8

The PER and TIM proteins accumulate during the day until they cause sleepiness. What prevents them from continuing to accumulate at night?

Accepted Answer

A)   Metabolic rates increase at night, so proteins are digested faster than they can be synthesized.
B)   The high levels of melatonin present at night react with the proteins to disable them.
C)   The proteins are unstable at the lower body temperatures that are typical at night.
D)   When the proteins reach a high level, they turn off the genes that produce them.E) A) and B)
F) All of the above

Question 9

Arousal seems to be regulated by a single structure in the brainstem.

Accepted Answer

A) True 
 B)False

Question 10

The retinohypothalamic path extends directly from the:

Accepted Answer

A)   SCN to the hypothalamus.
B)   retina to the SCN.
C)   hypothalamus to the SCN.
D)   retina to the cortex.E) A) and B)
F) None of the above

Question 11

What happens after damage to the suprachiasmatic nucleus itself?

Accepted Answer

A)   Light no longer resets the biological clock, but the animal continues generating a 24-hour rhythm.
B)   Animals' activity patterns become less consistent and no longer respond to light and dark cycles.
C)   Animals lose their biological rhythms of temperature, but keep other circadian rhythms.
D)   Animals begin to maintain a constant level of activity throughout the 24-hour day.E) B) and C)
F) A) and B)

Question 12

Repeated involuntary movements of the arms and legs that may prevent a person from falling asleep are known as:

Accepted Answer

A)   REM behavior disorder.
B)   night terrors.
C)   periodic limb movement disorder.
D)   restless legs syndrome.E) C) and D)
F) None of the above

Question 13

EEG waves are larger when brain activity decreases because:

Accepted Answer

A)   the EEG measures muscle tension, which also decreases.
B)   neurons are becoming more synchronized.
C)   neurons are becoming more desynchronized.
D)   blood flow is increasing.E) A) and D)
F) All of the above

Question 14

Which of the following is NOT associated with REM sleep?

Accepted Answer

A)   increased probability of dreaming
B)   facial twitches
C)   EEG pattern resembling wakefulness
D)   tense and active postural musclesE) None of the above
F) A) and C)

Question 15

For which species does REM sleep compose the largest percentage of total sleep?

Accepted Answer

A)   species that get a great deal of sleep
B)   species that sleep very little
C)   humans, dolphins, and others with a large brain
D)   the aged members of any speciesE) A) and B)
F) C) and D)

Question 16

List the stages of sleep including their dominant electrophysiological marker.

Accepted Answer

Stage I: slow wave sleep, alph...

Question 17

Which of the following occurs as a normal night's sleep progresses?

Accepted Answer

A)   Stage 4 and REM both increase.
B)   Stage 4 and REM both decrease.
C)   Stage 4 increases, while REM decreases.
D)   Stage 4 decreases, while REM increases.E) A) and C)
F) B) and C)

Question 18

Circadian cycles are to ____ as circannual cycles are to ____.

Accepted Answer

A)   light-dark; temperature
B)   endogenous; exogenous
C)   mating; hibernating
D)   daily; yearlyE) A) and B)
F) A) and D)

Question 19

Research suggests that REM is:

Accepted Answer

A)   important for all types of memory.
B)   most important for strengthening memories of motor skills.
C)   most important for strengthening memories of lists of words.
D)   not important for strengthening memories of any kind.E) All of the above
F) B) and D)

Question 20

When traveling across time zones, adjustments are easier when traveling which direction?

Accepted Answer

A)   Travel to the east is easier.
B)   Travel to the west is easier.
C)   There is no difference.
D)   It varies greatly from person to person.E) All of the above
F) C) and D)

Exam 9: Wakefulness and Sleep

Repeated involuntary movements of the arms and legs that may prevent a person from falling asleep are known as:

Correct AnswerverifiedShow Answer

Which of the following is TRUE concerning the duration of a self-generated sleep/activity cycle?

Correct AnswerverifiedShow Answer

The PER and TIM proteins accumulate during the day until they cause sleepiness. What prevents them from continuing to accumulate at night?

Correct AnswerverifiedShow Answer

EEG waves are larger when brain activity decreases because:

Correct AnswerverifiedShow Answer

Arousal seems to be regulated by a single structure in the brainstem.

Correct AnswerverifiedShow Answer

Which of the following is NOT associated with REM sleep?

Correct AnswerverifiedShow Answer

What is a likely consequence if someone's temperature rhythm is phase-delayed?

Correct AnswerverifiedShow Answer

People with a mutation in their per gene are more likely to:

Correct AnswerverifiedShow Answer

List the stages of sleep including their dominant electrophysiological marker.

Correct AnswerverifiedStage I: slow wave sleep, alph...View AnswerShow Answer

In response to meaningful events, the locus coeruleus releases:

Correct AnswerverifiedShow Answer

Research suggests that REM is:

Correct AnswerverifiedShow Answer

The retinohypothalamic path extends directly from the:

Correct AnswerverifiedShow Answer

What happens after damage to the suprachiasmatic nucleus itself?

Correct AnswerverifiedShow Answer

People with REM behavior disorder:

Correct AnswerverifiedShow Answer

When traveling across time zones, adjustments are easier when traveling which direction?

Correct AnswerverifiedShow Answer

Circadian cycles are to ____ as circannual cycles are to ____.

Correct AnswerverifiedShow Answer

For which species does REM sleep compose the largest percentage of total sleep?

Correct AnswerverifiedShow Answer

Which of the following occurs as a normal night's sleep progresses?

Correct AnswerverifiedShow Answer

Someone who considers herself a "morning person" should take college classes at what time of the day?

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How do sleep stages 3 and 4 differ?

Correct AnswerverifiedShow Answer

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Stage I: slow wave sleep, alph...
View Answer

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Circadian cycles are to as circannual cycles are to .

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