brain & behavior ch 14

By hilbot11, May 2008

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measure of gross electrical activity of brain	electroencephalogram (EEG)
measure of eye movement	electrooculogram (EOG)
measure of the electrical activity of muscles, esp of the neck	electromyogram (EMG)
emergent stage 1 EEG is usually called __ sleep	REM
stages 3 and 4 are referred to as __ __ __ after the delta waves that characterize them	slow wave sleep (sws)
information supplied to cortex during REM sleep largely random and resulting dream is cortex's effort to make sense of random signals	activation-synthesis theory
environmental cues (such as light-dark cycle) that can entrain circadian rhythms	zeitgebers
circadian rhythms in constant environments (no zeitgeber)	free-running rhythms
brief periods of sleep (2-3 seconds) when subjects become less responsive to external stimuli	microsleeps
sensory tracts that mediate entrainment of circadian rhythms by light-dark cycles branch off from the __ __ and project to the __ __ of the hypothalamus	optic chiasm, suprachiasmatic nuclei
recurring losses of muscle tone during wakefulness	cataplexy
inability to move just as one is falling asleep or waking up	sleep paralysis
dreamlike experiences during wakefulness	hypnagogic hallucinations

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