Chapter 14 questions Flashcards

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1
Q

During REM, thermoregulation….

A

is impaired

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2
Q

The process by which an animal slowly shifts its circadian rhythm to synchronize with the time of sunrise each day is called…

A

entrainment

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3
Q

Dolphins do not exhibit____ sleep, most likely because motor inhibition during this stage would not allow the dolphins to surface for air.

A

REM

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4
Q

In healthy young adults, nearly half of all sleep time is spent in…

A

Stage 2 SWS

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5
Q

A diurnal animal is awake during the…

A

daytime

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6
Q

When a hamster or a person continues to display an activity cycle without any external cues about the time of day, the cycle is said to be….

A

free-running

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7
Q

Sleep spindles are seen in the EEG records of people who are in…

A

stage 2 sleep

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8
Q

sleep enuresis is associated with

A

Stage 3 SWS

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9
Q

Some researchers have characterized SWS dreams as…

A

resembling vague thought.

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10
Q

Entrainment of circadian rhythms refers to the process by which…

A

the rhythms of an animal’s activities are synchronized and shifted.

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11
Q

____% of sleep in the first two weeks of life is ____sleep.

A

50; REM

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12
Q

The cerveau isole preparation involves a cut through the….

A

midbrain

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13
Q

In the absence of light cues, hamsters with two copies of the tau mutation will show biological rhythms with periods of _______ hours.

A

About 20

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14
Q

A new hamster mutant, zip, has a daily rhythm (in the absence of light cues) with a period of 8 hours. If you transplanted the fetal SCN from a zip animal into the brain of an adult hamster with the tau mutation (and its own SCN lesioned), you would expect the period of this adult’s rhythm to be

A

8 hours

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15
Q

Autopsy results from people who have died of fatal familial insomnia show evidence of degeneration in the

A

thalamus

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16
Q

Widespread synchronization of cortical activity measured via EEG is characteristic of

A

delta waves

17
Q

Norepinephrine innervation to the brain comes primarily from the…

A

locus coeruleus

18
Q

A nocturnal animal is usually asleep during the…

A

daytime

19
Q

After a day of intensive studying for an exam, a student’s sleep during the following night will most likely contain…

A

more REM than usual