2021 Fiscal Year Final Research Report
The effects of hyperarousal on sleep onset process for those who suffered from difficulty in falling asleep
Project/Area Number |
19K03340
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 10030:Clinical psychology-related
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Research Institution | Hiroshima University |
Principal Investigator |
Hayashi Mitsuo 広島大学, 人間社会科学研究科(総), 教授 (00238130)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 入眠困難 / 睡眠 / 過覚醒 / 入眠期 / 脳波 |
Outline of Final Research Achievements |
Difficulty in falling asleep is associated with cognitive arousal, such as anxiety and rumination. This study experimentally manipulated cognitive arousal and examined the effects of it on sleep onset process. The results showed that (1) effort to falling asleep affects the early part of the sleep onset process, not the latter part of it, (2) laughing for 30 minutes before bedtime or (3) going to sleep with imagining comfortable scene suppress cognitive arousal and promote quicker falling asleep.
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Free Research Field |
実験心理学
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Academic Significance and Societal Importance of the Research Achievements |
眠ろうと努力すればするほど眠れなくなる。このような就床時の過剰な覚醒(過覚醒)が入眠困難の原因となっている。その影響が入眠過程のどの段階まで続くのか、どうすれば過覚醒を低減できるのかを明らかにできれば、入眠困難の有効な対処法となる。本研究の結果、過覚醒は入眠過程の初期に現れること、その時期に快的でリラックスできる心理状態になるよう、就床前に笑ったり、快的なイメージをありありと思い描くことが就床時の過覚醒の低減に有効であることを明らかにした。
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