Interaction of REM Deprivation and Stage 4 Deprivation With Total Sleep Loss: Experiment 2

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Abstract
To determine whether prior deprivation of stage REM or stage 4 sleep would potentiate the effects of total sleep loss, 7 young adult males were denied REM sleep and 7 were denied stage 4 sleep for 3 nights before 1 night of total sleep loss. Measures of autonomic and EEG activity, mood, anxiety, Rorschach CET and on several performance tasks were obtained during baseline, following stage deprivation, total sleep loss, and during recovery.There were no marked changes in any area following 3 nights of stage REM and stage 4 deprivation. The changes following total sleep loss were similar for both groups. Prior deprivation of stage REM or stage 4 did not potentiate sleep loss effects. Ss who had no stage deprivation prior to 1 night of sleep loss had more impairment following sleep loss than did the Ss of this study.

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