The Effects of One Night's Loss of Sleep and Recovery on Physiological, Performance, and Subjective Indices.
Interim rept. 1 Dec 93-1 Oct 94,
LOGICON TECHNICAL SERVICES INC DAYTON OH
Pagination or Media Count:
The effects of one nights sleep loss were tested on subjects who were tested again after a nights recovery sleep. Several physiological measures were taken while subjects were administered the AGARD SIRES Battery to assess performance changes and the NASA-ThX a subjective index. In general, all measures showed changes with sleep loss which then recovered with one nighfs sleep. On several of the SIRES Battery tasks, reaction times increased and accuracy decreased after a night without sleep, and then recovered with a nights sleep. Tracking performance especially was consistently affected. Blink rate reliably increased with a nights sleep loss, and recovered with sleep blink duration tended to increase with sleep loss. Heart rate decreased with sleep loss, while heart rate variability at high and medium bands was found to increase consistently. Power in the EEG alpha band tended to be greater after a nights loss of sleep when it was measured in terms of absolute power and as relative to total EEG power. Evoked potential results were equivocal. Subjectively, subjects ranked the individual SIRES Battery tasks as harder after a night without sleep. Just one night without sleep affected task performance, physiological measures, and subjective assessments of task requirements recovery generally occurred with one night of sleep.
- Stress Physiology