Question 1

A human's body temperature over the course of 24 hours is usually highest ____.​

Accepted Answer

A)  about the time of awakening
B)  ​mid-morning
C)  ​mid to late afternoon
D)  in the middle of the night

Question 2

Some drugs used to treat allergies may produce drowsiness if they ____.​

Accepted Answer

A)  block histamine
B)  ​stimulate acetylcholine
C)  ​decrease adenosine
D)  block GABA

Question 3

Slow-wave sleep is comprised of ____.

Accepted Answer

A)  alpha wave sleep
B)  ​stages 1 and 2
C)  ​stages 3 and 4
D)  REM sleep

Question 4

The SCN produces circadian rhythms by altering ____.​

Accepted Answer

A)  blood pressure
B)  ​production of proteins
C)  ​action potential velocity
D)  axon myelination

Question 5

Research found that during REM sleep,activity ____.​

Accepted Answer

A)  decreased in the pons, while it increased in the limbic system
B)  ​increased in the pons, while it decreased in the limbic system
C)  ​decreased in both the pons and the limbic system
D)  increased in both the pons and the limbic system

Question 6

During ____,cells in the pons send messages that inhibit the motor neurons that control the body's large muscles.​

Accepted Answer

A)  wakefulness
B)  ​REM sleep
C)  ​NREM sleep
D)  transitions from wakefulness to sleep or sleep to wakefulness

Question 7

With regard to sleep and arousal,the locus coeruleus is ____.​

Accepted Answer

A)  very active during sleep
B)  ​active when the pontomesencephalon is not
C)  ​almost completely inactive during sleep
D)  instrumental in waking us up

Question 8

Which of the following would most likely help someone adjust to jet lag?​

Accepted Answer

A)  taking a nap during the day
B)  ​taking melatonin when you need to wake up
C)  ​keeping the room light when you need to stay awake
D)  darkening the room when you need to stay awake

Question 9

Compared to the earlier part,the later part of a night's sleep ____.​

Accepted Answer

A)  includes a larger percentage of REM sleep
B)  ​includes a lower percentage of REM sleep
C)  ​is characterized by declining body temperature
D)  has more slow wave sleep

Question 10

The mean preferred time of going to sleep gets later and later until about age 20 and then starts a gradual reversal.​

Accepted Answer

A) True 
 B)False

Question 11

What is the principal zeitgeber for land animals?​

Accepted Answer

A)  light
B)  ​the tides
C)  ​temperature
D)  barometric pressure

Question 12

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.

Question 13

Young adults deprived of a night's sleep show deficits on ____ tasks.​

Accepted Answer

A)  verbal
B)  ​sensory
C)  ​memory
D)  motor

Question 14

During sleep,what happens in the brain?

Accepted Answer

A)  cessation of spontaneous activity in neurons
B)  ​increased firing by dopamine neurons
C)  ​decreased firing by dopamine neurons
D)  increased firing by GABA neurons

Question 15

Which of these is characteristic of sleep apnea?​

Accepted Answer

A)  involuntary movements of the arms and legs during sleep
B)  ​periods without breathing during sleeping
C)  ​tendency to fall asleep suddenly during the day
D)  sleep walking and sleep terrors

Question 16

The dominant zeitgeber for land animals is light.​

Accepted Answer

A) True 
 B)False

Question 17

For a normal person,about how long does a cycle of sleep (from stage 1 to stage 4 and back again) last?​

Accepted Answer

A)  10 minutes
B)  ​90 minutes
C)  ​4 hours
D)  7 hours

Question 18

Biological clocks are very resistant to environmental influences.​

Accepted Answer

A) True 
 B)False

Question 19

The ____ is a structure that extends from the medulla into the forebrain.​

Accepted Answer

A)  reticular formation
B)  ​tectum
C)  ​tegmentum
D)  thalamus

Question 20

According to the activation-synthesis hypothesis,it should be possible to predict (with better than chance accuracy) the content of a person's dreams if we know what information about the person?​

Accepted Answer

A)  concentration of serotonin and acetylcholine in the cerebral cortex
B)  ​number and type of emotional experiences during the day
C)  ​stimuli currently acting on the body and areas of spontaneous brain activity
D)  time the person went to sleep and the current time

Exam 8: Wakefulness and Sleep

With regard to sleep and arousal,the locus coeruleus is ____.​

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

A human's body temperature over the course of 24 hours is usually highest ____.​

Correct AnswerverifiedShow Answer

Research found that during REM sleep,activity ____.​

Correct AnswerverifiedShow Answer

The mean preferred time of going to sleep gets later and later until about age 20 and then starts a gradual reversal.​

Correct AnswerverifiedShow Answer

For a normal person,about how long does a cycle of sleep (from stage 1 to stage 4 and back again) last?​

Correct AnswerverifiedShow Answer

Slow-wave sleep is comprised of ____.

Correct AnswerverifiedShow Answer

Some drugs used to treat allergies may produce drowsiness if they ____.​

Correct AnswerverifiedShow Answer

The dominant zeitgeber for land animals is light.​

Correct AnswerverifiedShow Answer

What is the principal zeitgeber for land animals?​

Correct AnswerverifiedShow Answer

Which of these is characteristic of sleep apnea?​

Correct AnswerverifiedShow Answer

The ____ is a structure that extends from the medulla into the forebrain.​

Correct AnswerverifiedShow Answer

Compared to the earlier part,the later part of a night's sleep ____.​

Correct AnswerverifiedShow Answer

Which of the following would most likely help someone adjust to jet lag?​

Correct AnswerverifiedShow Answer

Young adults deprived of a night's sleep show deficits on ____ tasks.​

Correct AnswerverifiedShow Answer

During ____,cells in the pons send messages that inhibit the motor neurons that control the body's large muscles.​

Correct AnswerverifiedShow Answer

The SCN produces circadian rhythms by altering ____.​

Correct AnswerverifiedShow Answer

According to the activation-synthesis hypothesis,it should be possible to predict (with better than chance accuracy) the content of a person's dreams if we know what information about the person?​

Correct AnswerverifiedShow Answer

Biological clocks are very resistant to environmental influences.​

Correct AnswerverifiedShow Answer

During sleep,what happens in the brain?

Correct AnswerverifiedShow Answer

With regard to sleep and arousal,the locus coeruleus is ____.

Correct Answer
verified

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

Correct Answer
verified

A human's body temperature over the course of 24 hours is usually highest ____.

Correct Answer
verified

Research found that during REM sleep,activity ____.

Correct Answer
verified

The mean preferred time of going to sleep gets later and later until about age 20 and then starts a gradual reversal.

Correct Answer
verified

For a normal person,about how long does a cycle of sleep (from stage 1 to stage 4 and back again) last?

Correct Answer
verified

Correct Answer
verified

Some drugs used to treat allergies may produce drowsiness if they ____.

Correct Answer
verified

The dominant zeitgeber for land animals is light.

Correct Answer
verified

What is the principal zeitgeber for land animals?

Correct Answer
verified

Which of these is characteristic of sleep apnea?

Correct Answer
verified

The ____ is a structure that extends from the medulla into the forebrain.

Correct Answer
verified

Compared to the earlier part,the later part of a night's sleep ____.

Correct Answer
verified

Which of the following would most likely help someone adjust to jet lag?

Correct Answer
verified

Young adults deprived of a night's sleep show deficits on ____ tasks.

Correct Answer
verified

During ____,cells in the pons send messages that inhibit the motor neurons that control the body's large muscles.

Correct Answer
verified

The SCN produces circadian rhythms by altering ____.

Correct Answer
verified

According to the activation-synthesis hypothesis,it should be possible to predict (with better than chance accuracy) the content of a person's dreams if we know what information about the person?

Correct Answer
verified

Biological clocks are very resistant to environmental influences.

Correct Answer
verified

Correct Answer
verified