期刊
CLINICAL NEUROPHYSIOLOGY
卷 117, 期 9, 页码 1885-1901出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.clinph.2006.01.017
关键词
arousal; attention; sleep deprivation; EEG; evoked potentials; cognition; vigilance
资金
- NCCIH NIH HHS [U19 AT002656, K23 AT001933-02, AT002656, AT01993] Funding Source: Medline
- NATIONAL CENTER FOR COMPLEMENTARY &ALTERNATIVE MEDICINE [U19AT002656, K23AT001933] Funding Source: NIH RePORTER
Vigilance is a term with varied definitions but the most common usage is sustained attention or tonic alertness. This usage of vigilance implies both the degree of arousal on the sleep-wake axis and the level of cognitive performance. There are many interacting neural and neurotransmitter systems that affect vigilance. Most studies of vigilance have relied on states where the sleep-wake state is altered, e.g. drowsiness, sleep-deprivation, and CNS-active drugs, but there are factors ranging from psychophysics to motivation that may impact vigilance. While EEG is the most commonly studied physiologic measure of vigilance, various measures of eye movement and of autonomic nervous system activity have also been used. This review paper discusses the underlying neural basis of vigilance and its assessment using physiologic tools. Since, assessment of vigilance requires assessment of cognitive function this aspect is also discussed. (c) 2006 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.
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