並列タイトル等A difference between morning-type and evening-type on electro-dermal activity, and improvement of sleep phase in evening-type by bright light exposure
タイトル（掲載誌）科学研究費助成事業（科学研究費補助金）研究成果報告書
一般注記type:Working Paper
研究成果の概要 (和文) : 睡眠調査では、夜型は朝型より、寝つき、寝起きが遅く、不規則であった。夜型は朝型より、カフェインの摂取頻度が高く、疲労感が高かった。夜型の参加者を十分にリクルートできす、最終的に7名が実験に参加し、2時間おきに多相性睡眠潜時検査、心拍変動R-Rインターバルから自律神経解析を実施した。高照度条件で自覚的眠気は、18時で有意に眠気が低下した。自律神経系の指標では、脈拍が時刻の効果で変化したが、その他は高照度光の効果は認められなかった。
研究成果の概要 (英文) : We investigated the improvement of phase-delayed sleep inJapanese university students by bright light exposure. First, 369 students (average age20.6±1.69）who were 19 morning type, 261 intermediate type and 89 evening type were analyzed in the sleep questionnaire. Initiating sleep time and wake time was more irregular in evening type than in other types. Evening-type students took the most volume of caffeine in three types. Evening-type students had more fatigue and less feeling of good health compared to morning-type students. Second, seven physical and mental healthy students were participated in the experiments with and without bright light exposure. They were tested Multiple Sleep Latency Test, subjective sleepiness scales (Stanford sleepiness scale, Kalolinska sleepiness scale and so on). We analyzed the indicator of an autonomic nervous system by time series data of heart rate variability. Subjective sleepiness on Kalolinska sleepiness scale was decreased on bright light codition compared to that on room-light condition at 18 o'clock. There were no significant differences on the indicator of an autonomic nervous system in the two light conditions. Bright light exposure during daytime for one day was thought to have the limited effects on sleepiness.
一次資料へのリンクURLhttps://hosei.ecats-library.jp//da/repository/00010041/14_kaken_2012_takahashi_toshiharu.pdf
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）