期刊
CLINICAL NEUROPHYSIOLOGY
卷 117, 期 7, 页码 1574-1581出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.clinph.2006.03.011
关键词
the psychomotor vigilance task (PVT); The Karolinska drowsiness test (KDT); The alpha attenuation test (AAT); The Karolinska sleepiness scale (KSS); The Japanese version of the Karolinska sleepiness scale (KSS-J)
Objective: The Karolinska sleepiness scale (KSS) is frequently used for evaluating subjective sleepiness. The main aim of the present study was to investigate the validity and reliability of the KSS with electroencephalographic, behavioral and other subjective indicators of sleepiness. Methods: Participants were 16 healthy females aged 33-43 (38.1 +/- 2.68) years. The experiment involved 8 measurement sessions per day for 3 consecutive days. Each session contained the psychomotor vigilance task (PVT), the Karolinska drowsiness test (KDT-EEG alpha & theta power), the alpha attenuation test (AAT-alpha power ratio open/closed eyes) and the KSS. Results: Median reaction time, number of lapses, alpha and theta power density and the alpha attenuation coefficients (AAC) showed highly significant increase with increasing KSS. The same variables were also significantly correlated with KSS, with a mean value for lapses (r=0.56). Conclusions: The KSS was closely related to EEG and behavioral variables, indicating a high validity in measuring sleepiness. Significance: KSS ratings may be a useful proxy for EEG or behavioral indicators of sleepiness. (c) 2006 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据