Validation of the Karolinska sleepiness scale against performance and EEG variables
Validation of the Karolinska sleepiness scale against performance and EEG variables
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DOI：
10.1016/j.clinph.2006.03.011
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发表时间：
2006-07-01
影响因子：
4.7
通讯作者：
Fukasawa, Kenji
中科院分区：
文献类型：
--
作者：
Kaida, Kosuke;Takahashi, Masaya;Fukasawa, Kenji
目的：Karolinska嗜睡量表(KSS)是评价患者主观嗜睡的常用工具。本研究的主要目的是用脑电、行为和其他主观睡眠指标来检验KSS量表的效度和信度。实验包括连续3天每天8次测量。每次测试包括精神运动警戒任务(PVT)、Karolinska嗜睡测试(KDT-EEGα-theta功率)、α衰减测试(AAT-α功率张开/闭眼比)和KSS。结果：随着KSS的增加，中位反应时、失误次数、α功率密度、α功率密度和α衰减系数(AAC)均显著增加。同样的变量与KSS也有显著的相关性，平均相关系数r=0.56。结论：KSS与EEG和行为变量密切相关，表明KSS评分在测量嗜睡方面具有较高的效度。(C)2006年国际临床神经生理学联合会。爱思唯尔爱尔兰有限公司出版。版权所有。
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.