physio psych module 10

The symptom known as ________ is an abnormality of REM sleep.

cataplexy

circadian rhythms are

endogenous cycles of activity over the course of a day

An electro-oculogram measures

eye movements

REM sleep behavior disorder is to cataplexy as

movement is to paralysis

Sleep stages 1-4 are termed ________, whereas stages 3-4 are referred to as ________.

non-REM sleep; slow-wave sleep

The primary function of slow-wave sleep is to

permit the brain to rest

The neurons that turn on REM sleep are located in the

pons

Narcolepsy in dogs is

produced by a mutation of the hypocretin gene

The high level of delta waves in normally active brain areas suggests that the primary function of stage 4 of slow-wave sleep is to

rest the brain

The suprachiasmatic nucleus controls circadian rhythms via

secretion of as yet unidentified chemicals

Changes in blood flow to the genitals are noted during _______________ and can be used clinically for the diagnosis of ____________.

REM sleep; impotence

All of the following are characteristics of REM sleep EXCEPT

alternating delta and beta EEG activities

Which of the following is true of the sleep cycle during a night of sleep?

As the night goes on, the relative length of REM sleep increases in each successive cycle.

_____________________ is a sleep disorder that is the opposite of REM sleep behavior disorder

Cataplexy

Which of the following findings support the memory consolidation therapy of REM

Deprivation of REM sleep results in poor learning in rats.

Which of the following is a rhythm that tends to occur over a 90 minute period ?

a single non-REM/REM sleep cycle

Signs of cortical arousal in the EEG are reduced by

acetylcholine antagonists

Stages of sleep are easily distinguished by

changes in the electrical activity of the brain

The __________ contains the primary biological clock that controls sleep-wake cycles in the rat

suprachiasmatic nucleus

A serious issue associated with sleeping medications is that

the use of sleeping pills can lead to daytime grogginess

The _____________ brain wave pattern has a characteristic frequency of ______________

thetha; 3.5 - 7.5 Hz

The notion that sleep or wakefulness is regulated by a substance that circulates within the blood is

unlikely, given that the cerebral hemispheres of a dolphin sleep at a different times.