Module 23

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How is the hypothalamus involved in sleep?

In response to decreasing light the hypothalamus' suprachiasmatic nucleus causes the pineal gland to increase production of melatonin, leading you to sleep.

The hypnagogic sensations of falling or floating are most likely to occur during which sleep stage?

NREM-1 sleep

After Carlos had been asleep for about an hour and a half, his heart began to beat faster, his breathing became fast and irregular, and his closed eyes began to dart back and forth. Carlos was most likely experiencing

REM sleep

Paradoxical sleep is to slow-wave sleep as ________ sleep is to ________ sleep.

REM; NREM-3

With the approach of night, our body temperatures begin to drop. This best illustrates the dynamics of the

circadian rhythm

Patrick has just entered REM sleep. Which of the following is he likely to experience?

body paralysis

Alpha waves are associated with

relaxed by awake state

The rhythmic bursts of brain activity that occur during NREM-2 sleep are called

sleep spindles

Researchers have demonstrated that people trained to perform tasks recall them better after a night's sleep than after several hours awake. This finding suggests that sleep

is involved in the memory process

Which of the following is true of melatonin?

it is a sleep hormone released by the pineal gland into the bloodstream

REM sleep is called paradoxical sleep because

our nervous system is highly active, while our voluntary muscles hardly move

Forty-year-old Lance insists that he never dreams. Research suggests that he probably

would report a vivid dreams he are awakened during REM sleep

The large, slow brain waves associated with deep sleep are called

delta waves


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