EEG Power Density during Nap Sleep: Reflection of an Hourglass Measuring the Duration of Prior Wakefulness

Journal of Biological Rhythms - Tập 2 Số 3 - Trang 207-219 - 1987
Derk‐Jan Dijk1, Domien G. M. Beersma1, Serge Daan1
1Departments of Biological Psychiatry and Zoology, University of Groningen, 9713 EZ Groningen, The Netherlands

Tóm tắt

The relation between the duration of prior wakefulness and EEG power density during sleep in humans was assessed by means of a study of naps. The duration of prior wakefulness was varied from 2 to 20 hr by scheduling naps at 1000 hr, 1200 hr, 1400 hr, 1600 hr, 1800 hr, 2000 hr, and 0400 hr. In contrast to sleep latencies, which exhibited a minimum in the afternoon, EEG power densities in the delta and theta frequencies were a monotonic function of the duration of prior wakefulness. The data support the hypothesis that EEG power density during non-rapid eye movement sleep is only determined by the prior history of sleep and wakefulness and is not determined by clock-like mechanisms.

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Thông tin
Thông tin xuất bản

Journal of Biological Rhythms

Tập 2 Số 3

207-219

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