As a person ages, the total amount of time that they spend asleep each night ...

decreases; the proportion of time spent in NREM increases.

Which of the following statements is true of the cycles in a typical night’s sleep?

Periods of REM get longer/closer together through the night

during the occurrence of REM sleep.

What would a comparison of sleep between typical adolescents and children show?

Children spend proportionately less time in slow-wave sleep.

REM sleep ________, whereas NREM sleep _________.

Repairs the mind; repairs the body.

The proportion of rapid eye movement (REM) sleep to non-rapid eye movement (NREM) sleep is:

Greater in infancy than later in the lifespan

The restoration theory of sleep proposes that sleep

enables damaged cells to be repaired.

According to the evolutionary theory of sleep, the purpose of sleep is to enhance survival by..

causing it to attract less attention to itself while asleep.

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Unit 4 - Importance of Sleep

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Questions 13

Answers

1
As a person ages, the total amount of time that they spend asleep each night ...
increases; & the proportion of time spent in REM increases.
does not change in relation to % of time spent in REM & NREM
decreases; the proportion of time spent in NREM increases.
decreases; the proportion of time spent in REM increases.
2
Which of the following statements is true of the cycles in a typical night’s sleep?
About 80% of the night is spent in REM sleep
Each cycle of sleep lasts for approximately 20 minutes.
Periods of REM get longer/closer together through the night
Periods of Stage 4 occur more frequently through the night.
3
The first ultradian rhythm differs from the last, as the first of the night involves
more time spent in REM sleep
only Stage 2 and Stage 3 of NREM sleep
more time spent in NREM sleep
frequent brief awakening
4
Dreams usually occur
because of sleep paralysis.
if you go to sleep with a full stomach.
during the occurrence of REM sleep.
during sleep spindles.
5
Total amount of sleep we need throughout our life is relevant to:
Amount of crosswords we do during the day
Production of growth hormone
Personal needs
Development of brain tissue
6
Our circadian rhythm is on a ______ cycle, whereas ultradian is __________.
24 hours; less than 24 hours.
Less than 24 hours; 23 hours.
24 hours; 24 hour loop.
12 hour; 24 hour cycle.
7
B is a healthy 55yo who sleeps an average of 7hrs p/night. It is likely that his sleep pattern
is likely to consist of more 3 & 4 NREM than other stages.
is normal for a man of his age
is abnormally short for a man of his age
demonstrates partial sleep deprivation
8
What would a comparison of sleep between typical adolescents and children show?
Children spend proportionately less time in slow-wave sleep.
The amount of time spent in slow-wave sleep is similar.
Children have later sleep onset than adolescents.
Adolescents spend proportionately more time in REM sleep.
9
Which indicates a typical night of sleep for an adult? Duration(mins) & number of sleep cycles
60–70, 4 or 5
10–15, 4 or 5
90–120, 4 or 5
30–40, 1 or 2
10
REM sleep ________, whereas NREM sleep _________.
is for jamming out; is for resting and recovering.
Repairs the mind; repairs the body.
Repairs the body; repairs the mind
is paradoxical sleep; is mostly for dreaming.
11
The proportion of rapid eye movement (REM) sleep to non-rapid eye movement (NREM) sleep is:
Equal across the lifespan
Lower at birth and higher in late adolescence
Greater in infancy than later in the lifespan
Lower at birth and equal in later adolescence
12
The restoration theory of sleep proposes that sleep
occurs at particular times programmed by the brain.
allows the organism to conserve energy.
protects an organism from predators.
enables damaged cells to be repaired.
13
According to the evolutionary theory of sleep, the purpose of sleep is to enhance survival by..
rejuvenating the body and mind.
conserving energy in order to escape from predators.
reducing the amount of energy it needs.
causing it to attract less attention to itself while asleep.

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