Mod. 23

b

In which stage of sleep are you likely to experience hypnagogic sensations of falling? a. alpha sleep b. NREM-1 c. NREM-2 d. NREM-3 e. REM

b

What is the role of the suprachiasmatic nucleus (SCN) in sleep? a. it induces REM sleep approximately every 90 minutes during sleep b. it causes the pineal gland to increase the production of melatonin c. it causes the pituitary gland to increase the release of human growth hormone d. it causes the pituitary gland to decrease the release of human growth hormone e. it causes the pineal gland to decrease the production of melatonin

c

Which of the following represents a circadian rhythm? a. a burst of growth occurs during puberty b. a full moon occurs about once a month c. body temperature rises each day as morning approaches d. when it is summer in the northern hemisphere, it is winter in the southern hemisphere e. pulse rate increases when we exercise

d

Which of the following sleep theories emphasizes sleep's role in restoring and repairing brain tissue? a. memory b. protection c. growth d. recuperation e. creativity

suprachiasmatic nucleus

a pair of cell clusters in the hypothalamus that controls circadian rhythm

melatonin

a sleep-inducing hormone

EEG

a way of measuring sleep activity through brain waves

Hallucination/hypnagogic senstation

false sensory experiences

pineal gland

gland that adjusts the production of the sleep-inducing hormone melatonin

NREM sleep

non-rapid eye movement sleep

REM sleep

rapid eye movement sleep

memory restoration theory

that the function of sleep is to consolidate our memories

creative thinking theory

that the function of sleep is to feed creative thinking

recuperation theory

that the function of sleep is to help restore and repair brain tissue

sleep protects theory

that the function of sleep is to protect people and increase chances of survival

growth theory

that the function of sleep is to support growth

circadian rhythm

the biological clock; regular body rhythms that occur on a 24-hour cycle

beta wave

the brain waves of an alert, waking state

delta wave

the large, slow brain waves associated with deep sleep

alpha wave

the relatively slow brain waves of a relaxed, awake state

sleep paralysis

when during REM sleep your brain's motor cortex is active, but your brainstem blocks its messages