Abstract
ABSTRACTAll night recordings of skin potential (SP) and skin resistance (SR) levels and rapid electrodermal fluctuations (REFs) were taken from a group of college students during two nights of normal sleep. An attempt was made to associate changes in these measures with stages of sleep as identified by EEG patterns. Electrodermal levels could differentiate between wake and sleep but could not clearly identify individual sleep stages or REM periods. REFs were found to increase in number during slow wave sleep and decrease during Stage I REM periods. This diminution of REFs occurred consistently about six minutes before the onset of each REM period and then returned at a lower rate a few minutes after the termination of the REM period.
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