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High prevalence of isolated sleep paralysis: kanashibari phenomenon in Japan.
In Japan, a set of experiences called kanashibari is considered identical with isolated sleep paralysis. We investigated this phenomenon by means of a questionnaire administered to 635 collegeExpand
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Differences in sleep-wake habits and EEG sleep variables between active morning and evening subjects.
This article is a survey study, followed by an experimental study, examining the differences of sleep-wake habits and sleep electroencephalographic (EEG) variables between morning and evening typeExpand
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[The results of investigation by the Japanese version of Morningness-Eveningness Questionnaire].
Morningness-Eveningness Questionnaire (MEQ) developed by Horne & Ostberg (1976) was translated into Japanese, and then, MEQ and Life Habits Inventory were administered to approximately 1,500Expand
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Age‐related changes of sleeping pattern during adolescence
A questionnaire concerning sleep‐related lifestyle, and physical and mental health was administered to the students of junior high schools (12–15 years), high schools (15–18 years), and universities.Expand
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The reliability and validity of the Japanese version of the Children's ChronoType Questionnaire (CCTQ) in preschool children
We aimed to examine the reliability and validity of the Japanese version of the Children's ChronoType Questionnaire (CCTQ) in preschool children. The CCTQ consists of 16 items on sleep–wakeExpand
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Investigation of the Children's Version of the Morningness-Eveningness Questionnaire with Primary and Junior High School Pupils in Japan
A children's version of the Morningness-Eveningness Questionnaire was administered to approximately 1150 pupils of primary school and 500 pupils of junior high school. Analysis showed that the meanExpand
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Morningness-eveningness preference and sleep habits in Japanese office workers of different ages.
The Japanese version of the morningness-eveningness questionnaire and life habits inventory were administered to approximately 400 workers and the changes in morningness-eveningness scores andExpand
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Validity of the Japanese Version of the Morningness-Eveningness Questionnaire
The Morningness-Eveningness (ME) scores and body temperature readings were collected from 25 students to assess the validity of Japanese version of Horne-Östberg's ME questionnaire. SignificantExpand
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Comparisons of sleep-wake habits of morning and evening types in Japanese worker sample.
The Japanese version of the morningness-eveningness questionnaire and life habits inventory were administered to approximately 400 workers and the distribution of morningness-eveningness scores andExpand
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Routine evening naps and night‐time sleep patterns in junior high and high school students
Abstract This study investigated the relationship between napping and night‐time sleep patterns in junior high and high school students. A questionnaire concerning sleep‐related lifestyle was givenExpand
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