Sleep Quiz

What theory states that being awake disrupts the homeostasis of the body and sleep is required to restore it?

adaptation theory

Freud's theory

recuperation theory

revitalization theory

What theory states that sleep is not a reaction to the disruptive effects of being awake yet is the result of an internal 24-hour timing mechanism?

recuperation theory

adaptation theory

restoration theory

consolidation theory

What are some biological functions of sleep?

restorative function

energy conservation

immune regulation

all of the above

What does REM stand for?

repetitive eye motion

rapid eye motion

repetitive eye movement

rapid eye movement

Which sleep stage is characterized by the largest and slowest EEG waves, with a frequency of 1 to 2 Hz?

alpha waves

REM waves

delta waves

gamma waves

Environmental cues, such as the light-dark cycle, that can control the timing of circadian rhythms are called

melanopsin

zeitgebers

zeitgeist

free-running rhythms

What part of the brain is involved with the regulation of sleep and wakefulness?

hypothalamus

hippocampus

amygdala

all of the above

The major circadian clock seems to be located in the --- nuclei of the ---.

ventromedial; hypothalamus

suprachiasmatic; hypothalamus

lateral; amygdala

anterior; thalamus

After sleep deprivation, a person's sleep is characterized by a much higher proportion of

alpha waves

gamma waves

delta waves

beta waves

What confusing variable makes it difficult to study the effects of sleep deprivation?

depression

stress

hypertension

all of the above

After two or three nights without sleep what can be expected?

insomnia

narcolepsy

depression

REM rebound

What is NOT a consequence of sleep deprivation?

memory problems

alertness

irritablity

obesity

Which statement about caffeine and sleep is FALSE?

caffeine increases the percentage of time spent in slow-wave sleep

caffeine delays sleep

caffeine can delay the timing of the human circadian clock

caffeine decreases the percentage of time spent in slow-wave sleep

Sleep deprivation is associated with lower levels of ---- and higher levels of --- that promotes weight gain

serotonin; dopamine

ghrelin; leptin

leptin; ghrelin

adrenalin; melatonin

What are the consequences of long term sleep deprivation?

depression and anxiety

anger and aggression

increased risk-taking

all of the above