Dynamics of frontal EEG activity, sleepiness and body temperature under high and low sleep pressure

被引：108

作者：

Cajochen, C ^{[1
]}

Knoblauch, V ^{[1
]}

Kräuchi, K ^{[1
]}

Renz, C ^{[1
]}

Wirz-Justice, A ^{[1
]}

机构：

[1] Univ Basel, Psychiat Klin, Ctr Chronobiol, CH-4025 Basel, Switzerland

来源：

NEUROREPORT | 2001年 / 12卷 / 10期

关键词：

circadian; nap; sleep deprivation; sleep homeostasis; spectral analysis; subjective alertness; waking electroencephalogram;

D O I：

10.1097/00001756-200107200-00046

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The impact of sleep deprivation (high sleep pressure) vs sleep satiation (low sleep pressure) on waking EEG dynamics, subjective sleepiness and core body temperature (CBT) was investigated in 10 young volunteers in a 40h controlled constant posture protocol. The differential sleep pressure induced frequency-specific changes in the waking EEG from 1-7 Hz and 21-25Hz. Frontal low EEG activity (FLA, 1-7 Hz) during sleep deprivation exhibited a prominent increase as time awake progressed, which could be significantly attenuated by sleep satiation attained with intermittent naps. Subjective sleepiness exhibited a prominent circadian regulation during sleep satiation, with virtually no homeostatic modulation. These extremely different sleep pressure conditions were not reflected in significant changes of the CBT rhythm. The data demonstrate that changes in FLA during wakefulness are to a large extent determined by the sleep-wake dependent process with little circadian modulation, and reflect differential levels of sleep pressure in the awake subject. NeuroReport 12:2277-2281 (C) 2001 Lippincott Williams & Wilkins.

引用

页码：2277 / 2281

页数：5

共 18 条

[1] Dynamics of the human EEG during prolonged wakefulness: evidence for frequency-specific circadian and homeostatic influences [J].