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ID 25743
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別タイトル
Topographic mapping of EEG with the variation of sleepiness
著者
森川 俊雄
堀 忠雄
NDC
医学
抄録(英)
The relationship between the EEG topography and sleepiness was investigated in 5 normal students (aged 21- 26 yrs). They were assessed their sleepiness for 12 hours (19:00 to 07:00) at 20 min intervals via Kwansei-Gakuin sleepiness scale (KSS), visual analog scale (VAS) and the multiple sleep latency test (MSLT). The power spectra derived from 16 EEG leads were topographically displayed for every 1 Hz from 8 to 13 Hz, based on the initial 30 s EEG recordings of each MSLT period. With increasing sleepiness, the slow alpha band activities (8-9 Hz) developed around the occipital area, while the fast alpha band activities (12-13 Hz) tended to obscure at the parietal area. The topographic pattern for the activities of intermediate alpha band (10-11 Hz) were unchanged over the experimental period. These data suggest that the increase or decrease of the amplitude of the slow alpha activity and the fast alpha activity reflect the variation of sleepiness. The present study supplied the new perspectives for the study of sleepiness in terms of topographic mapping of the waking EEG.
掲載誌名
広島大学総合科学部紀要. III, 情報行動科学研究
13巻
開始ページ
61
終了ページ
71
出版年月日
1990-02-28
出版者
広島大学総合科学部
ISSN
0385-1478
NCID
SelfDOI
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 1989 by Faculty of Integrated Arts and Sciences, Hiroshima University. All rights reserved.
部局名
総合科学研究科
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