Sleep State Deprivation and Total Sleep Loss: Effects On Sleep Behavior.

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    • Abstract:
      The combined effects of total sleep loss and the deprivation of stage 4 or stage REM were studied in two separate experiments. Two full nights of sleep loss preceded stage 4 deprivation or stage REM deprivation in Experiment 1 (N = 12); 1 full night of sleep loss followed 3 nights of stage 4 deprivation or stage REM deprivation in Experiment 2 (N=14). Total sleep loss before sleep stage deprivation significantly increased the number of attempts to enter stage 4, but had little influence on stage REM. A significant REM rebound was found in only one of the REM-deprived groups, but there was a significant stage 4 rebound in all groups on the first full recovery night, supporting the hypothesis from other studies that stage 4 has priority over REM in terms of recovery from sleep loss. The results suggested that stages 2, 3, and 4 partially overlap in their recuperative functions. [ABSTRACT FROM AUTHOR]
    • Abstract:
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