Time-of-day effects of ethanol consumption on EEG topography and cognitive event-related potential in adult males

Yang Liu, Shigekazu Higuchi, Yutaka Motohashi

研究成果: Contribution to journalArticle査読

10 被引用数 (Scopus)

抄録

Time-of-day effects of ethanol consumption on EEG topography and cognitive event-related potential in adult males were studied. Ethanol (0.5 g/kg) or control drink was orally administered to nine healthy males at 10:00 and 18:00. The alpha2 amplitude was significantly lower than that of the control at 0.5, 2.5 and 4.5 hours after ethanol consumption in the morning. These effects were observed in the left hemisphere and were only found after consumption in the morning. The subjectively rated attention was significantly lower than that of the control at 0.5 and 2.5 hours after ethanol consumption in the morning and at 0.5 hours after ethanol consumption in the evening. In contrast, the search speed of serial search task and P300 amplitude was significantly lower than that of the control at 2.5 hours after ethanol consumption in the evening. These results demonstrate that effects of ethanol are dependent on time-of-day of consumption. Ethanol consumption significantly lowered the alpha2 amplitude when consumed in the morning, and lowered P300 amplitude when consumed in the evening.

本文言語英語
ページ(範囲)249-254
ページ数6
ジャーナルJournal of physiological anthropology and applied human science
19
6
DOI
出版ステータス出版済み - 11 2000
外部発表はい

All Science Journal Classification (ASJC) codes

  • 社会科学(全般)

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