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.