AP Psychology Module 23 Launchpad

The human sleep cycle repeats itself about every

90 minutes

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

Body paralysis

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.

After flying from California to New York, Arthur experienced a restless, sleepless night. His problem was most likely caused by a disruption of his normal

circadian rhythm

Alpha waves are associated with

relaxed but awake state

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

sleep spindles

The impact of circadian rhythms is best illustrated by

fluctuations in energy level and alertness across the span of a day

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

REM sleep is called paradoxical sleep because

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

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

delta waves