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    题名: The Acute Effects of Intermittent Light Exposure in the Evening on Alertness and Subsequent Sleep Architecture
    作者: Yang, Minqi;Ma, Ning;Zhu, Yingying;Su, Ying-Chu;Chen, Qingwei;Hsiao, Fan-Chi;Ji, Yanran;Yang, Chien-Ming;Zhou, Guofu
    楊建銘
    Yang, Chien-Ming
    贡献者: 心理系
    关键词: acute effects;intermittent light;continuous light;dim light;alertness;sleep structure
    日期: 2018-03
    上传时间: 2018-09-14 16:03:40 (UTC+8)
    摘要: Exposure to bright light is typically intermittent in our daily life. However, the acute effects of intermittent light on alertness and sleep have seldom been explored. To investigate this issue, we employed within-subject design and compared the effects of three light conditions: intermittent bright light (30-min pulse of blue-enriched bright light (~1000 lux, ~6000 K) alternating with 30-min dim normal light (~5 lux, ~3600 K) three times); continuous bright light; and continuous dim light on subjective and objective alertness and subsequent sleep structure. Each light exposure was conducted during the three hours before bedtime. Fifteen healthy volunteers (20 ± 3.4 years; seven males) were scheduled to stay in the sleep laboratory for four separated nights (one for adaptation and the others for the light exposures) with a period of at least one week between nights. The results showed that when compared with dim light, both intermittent light and continuous bright light significantly increased subjective alertness and decreased sleep efficiency (SE) and total sleep time (TST). Intermittent light significantly increased objective alertness than dim light did during the second half of the light-exposure period. Our results suggested that intermittent light was as effective as continuous bright light in their acute effects in enhancing subjective and objective alertness and in negatively impacting subsequent sleep.
    關聯: International Journal of Environmental Research and Public Health , 2018 Mar, 15;15(3). pii: E524
    PMID: 29543731
    数据类型: article
    DOI 連結: https://doi.org/10.3390/ijerph15030524
    DOI: 10.3390/ijerph15030524
    显示于类别:[心理學系] 期刊論文

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