Question 1

Typically,a person who falls asleep enters ____.​

Accepted Answer

A)  stage 4 and slowly progresses through the stages 3, 2, 1 and then REM
B)  ​REM and then slowly progresses from stage 4, to 3, then 2, and lastly 1
C)  ​stage 1 and slowly progresses through stages 2, 3 and 4, but not necessarily in order
D)  stage 1 and slowly progresses through stages 2, 3 and 4 in order

Question 2

Alpha waves are characteristic of what type of activity?​

Accepted Answer

A)  NREM sleep
B)  ​nightmares
C)  ​relaxed wakefulness
D)  periods of great excitement

Question 3

Which claim is most consistent with the evolutionary perspective of sleep?​

Accepted Answer

A)  The function of sleep is similar to that of hibernation.
B)  ​More highly evolved species, such as humans, need more sleep than other species.
C)  ​During sleep, we relive the experiences of past generations.
D)  Sleep enables the body to repair and restore itself to promote survival.

Question 4

If we compare either different species or different ages,what trend emerges?​

Accepted Answer

A)  The less total sleep, the higher the percentage of REM sleep
B)  ​The more total sleep, the higher the percentage of REM sleep
C)  ​The more activity during wakefulness, the higher the percentage of REM sleep
D)  The more activity during wakefulness, the lower the percentage of REM sleep

Question 5

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 night

Question 6

After isolating a neuron from the rest of the brain,you find that it has a moderately stable circadian rhythm.The most likely home of this neuron is in the ____.​

Accepted Answer

A)  optic nerve
B)  ​MPOA
C)  ​SCN
D)  pineal gland

Question 7

When does sleep walking occur?​

Accepted Answer

A)  only during REM sleep
B)  ​only during NREM sleep
C)  ​during both stage 3 and 4 sleep
D)  during the brief transition period between REM sleep and non-REM sleep

Question 8

Which statement is TRUE with regard to 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)  ​It rarely varies from one individual to another, if at all.
D)  It is highly consistent in a given individual in a given environment.

Question 9

Someone in a(n) ____ state alternates between periods of sleep and moderate arousal,although even during the more aroused state,the person shows no awareness of surroundings and no purposeful behavior.​

Accepted Answer

A)  unconscious
B)  ​minimally conscious
C)  ​coma
D)  vegetative

Question 10

Suppose you work on a submarine with only artificial light.You are required to follow a schedule of working for 12 hours and then sleeping for 6.What rhythm,if any,will your alertness and body temperature show?​

Accepted Answer

A)  They will follow a rhythm of 18 hours.
B)  ​They will follow the usual rhythm of 24 hours.
C)  ​They will follow a rhythm of 21 hours.
D)  They will cease to show any consistent rhythm.

Question 11

Loss of orexin-containing neurons in the hypothalamus may contribute to ____.​

Accepted Answer

A)  sleep apnea
B)  ​narcolepsy
C)  ​insomnia
D)  periodic limb movement disorder

Question 12

Melatonin is released by the SCN.​

Accepted Answer

A) True 
 B)False

Question 13

A small branch of the optic nerve,known as the ____ path extends directly from the retina to the SCN.​

Accepted Answer

A)  opticthalamic
B)  ​retinohypothalamic
C)  ​opticretinal
D)  retinothalamic

Question 14

Dreams only occur during REM sleep.​

Accepted Answer

A) True 
 B)False

Question 15

The relationship between sleep stage and dreaming is that dreams ____.​

Accepted Answer

A)  occur only in REM sleep
B)  ​occur only in NREM sleep
C)  ​are more frequent and more vivid in REM sleep
D)  are more frequent and more vivid in NREM sleep

Question 16

Sleep spindles and K-complexes are most characteristic of which sleep stage?​

Accepted Answer

A)  stage 1
B)  ​stage 2
C)  ​stage 3
D)  stage 4

Question 17

Briefly describe the role of the locus coeruleus in arousal and attention.​

Accepted Answer

The locus coeruleus is a small structure...

Question 18

Bright light late in the afternoon shortens the circadian rhythm.​

Accepted Answer

A) True 
 B)False

Question 19

The suprachiasmatic nucleus is found in the ____.​

Accepted Answer

A)  substantia nigra
B)  ​caudate nucleus
C)  ​thalamus
D)  hypothalamus

Question 20

A "zeitgeber" is a(n) ____.​

Accepted Answer

A)  biological clock
B)  ​animal that does not have a biological clock
C)  ​environmental cue that resets a biological clock
D)  body activity that is controlled by a biological clock

Exam 8: Wakefulness and Sleep

Dreams only occur during REM sleep.​

Correct AnswerverifiedShow Answer

Briefly describe the role of the locus coeruleus in arousal and attention.​

Correct AnswerverifiedThe locus coeruleus is a small structure...View AnswerShow Answer

Which claim is most consistent with the evolutionary perspective of sleep?​

Correct AnswerverifiedShow Answer

Someone in a(n) ____ state alternates between periods of sleep and moderate arousal,although even during the more aroused state,the person shows no awareness of surroundings and no purposeful behavior.​

Correct AnswerverifiedShow Answer

Suppose you work on a submarine with only artificial light.You are required to follow a schedule of working for 12 hours and then sleeping for 6.What rhythm,if any,will your alertness and body temperature show?​

Correct AnswerverifiedShow Answer

Loss of orexin-containing neurons in the hypothalamus may contribute to ____.​

Correct AnswerverifiedShow Answer

The suprachiasmatic nucleus is found in the ____.​

Correct AnswerverifiedShow Answer

Which statement is TRUE with regard to the duration of a self-generated sleep/activity cycle?​

Correct AnswerverifiedShow Answer

A small branch of the optic nerve,known as the ____ path extends directly from the retina to the SCN.​

Correct AnswerverifiedShow Answer

The relationship between sleep stage and dreaming is that dreams ____.​

Correct AnswerverifiedShow Answer

A "zeitgeber" is a(n) ____.​

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When does sleep walking occur?​

Correct AnswerverifiedShow Answer

If we compare either different species or different ages,what trend emerges?​

Correct AnswerverifiedShow Answer

Melatonin is released by the SCN.​

Correct AnswerverifiedShow Answer

Alpha waves are characteristic of what type of activity?​

Correct AnswerverifiedShow Answer

Sleep spindles and K-complexes are most characteristic of which sleep stage?​

Correct AnswerverifiedShow Answer

Bright light late in the afternoon shortens the circadian rhythm.​

Correct AnswerverifiedShow Answer

After isolating a neuron from the rest of the brain,you find that it has a moderately stable circadian rhythm.The most likely home of this neuron is in the ____.​

Correct AnswerverifiedShow Answer

Typically,a person who falls asleep enters ____.​

Correct AnswerverifiedShow Answer

Dreams only occur during REM sleep.

Correct Answer
verified

Briefly describe the role of the locus coeruleus in arousal and attention.

Correct Answer
verified
The locus coeruleus is a small structure...
View Answer

Which claim is most consistent with the evolutionary perspective of sleep?

Correct Answer
verified

Someone in a(n) ____ state alternates between periods of sleep and moderate arousal,although even during the more aroused state,the person shows no awareness of surroundings and no purposeful behavior.

Correct Answer
verified

Suppose you work on a submarine with only artificial light.You are required to follow a schedule of working for 12 hours and then sleeping for 6.What rhythm,if any,will your alertness and body temperature show?

Correct Answer
verified

Loss of orexin-containing neurons in the hypothalamus may contribute to ____.

Correct Answer
verified

The suprachiasmatic nucleus is found in the ____.

Correct Answer
verified

Which statement is TRUE with regard to the duration of a self-generated sleep/activity cycle?

Correct Answer
verified

A small branch of the optic nerve,known as the ____ path extends directly from the retina to the SCN.

Correct Answer
verified

The relationship between sleep stage and dreaming is that dreams ____.

Correct Answer
verified

A "zeitgeber" is a(n) ____.

Correct Answer
verified

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

Correct Answer
verified

When does sleep walking occur?

Correct Answer
verified

If we compare either different species or different ages,what trend emerges?

Correct Answer
verified

Melatonin is released by the SCN.

Correct Answer
verified

Alpha waves are characteristic of what type of activity?

Correct Answer
verified

Sleep spindles and K-complexes are most characteristic of which sleep stage?

Correct Answer
verified

Bright light late in the afternoon shortens the circadian rhythm.

Correct Answer
verified

After isolating a neuron from the rest of the brain,you find that it has a moderately stable circadian rhythm.The most likely home of this neuron is in the ____.

Correct Answer
verified

Typically,a person who falls asleep enters ____.

Correct Answer
verified