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題名 Temporal dynamics of subjective and objective alertness during exposure to bright light in the afternoon for 5 h
作者 楊建銘
Yang, Chien-Ming
Luo, Xue;Ru, Taotao;Chen, Qingwei;Hsiao, Fan-Chi;Hung, Ching-Sui;Zhou, Guofu
貢獻者 心理系
關鍵詞 light; illumination; alertness; light exposure; electroencephalogram
日期 2021-12
上傳時間 23-Aug-2022 15:08:56 (UTC+8)
摘要 Light can induce an alertness response in humans. The effects of exposure to bright light vs. dim light on the levels of alertness during the day, especially in the afternoon, as reported in the literature, are inconsistent. This study employed a multiple measurement strategy to explore the temporal variations in the effects of exposure to bright light vs. regular office light (1,200 lx vs. 200 lx at eye level, 6,500 K) on the alertness of participants for 5 h in the afternoon. In this study, 20 healthy adults (11 female; mean age 23.25 ± 2.3 years) underwent the Karolinska sleepiness scale (KSS), the auditory psychomotor vigilance test (PVT), and the waking electroencephalogram (EEG) test for two levels of light intervention. The results yielded a relatively lower relative delta power and a relatively higher beta power for the 1,200 lx condition in comparison with the 200 lx condition. However, the light conditions elicited no statistically significant differences in the KSS scores and performance with respect to the PVT. The results suggested that exposure to bright light for 5 h in the afternoon could enhance physiological arousal while exerting insignificant effects on subjective feelings and performance abilities relating to the alertness of the participants.
關聯 Frontiers in Physiology, Vol.12, 771605
資料類型 article
DOI https://doi.org/10.3389/fphys.2021.771605
dc.contributor 心理系
dc.creator (作者) 楊建銘
dc.creator (作者) Yang, Chien-Ming
dc.creator (作者) Luo, Xue;Ru, Taotao;Chen, Qingwei;Hsiao, Fan-Chi;Hung, Ching-Sui;Zhou, Guofu
dc.date (日期) 2021-12
dc.date.accessioned 23-Aug-2022 15:08:56 (UTC+8)-
dc.date.available 23-Aug-2022 15:08:56 (UTC+8)-
dc.date.issued (上傳時間) 23-Aug-2022 15:08:56 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/141505-
dc.description.abstract (摘要) Light can induce an alertness response in humans. The effects of exposure to bright light vs. dim light on the levels of alertness during the day, especially in the afternoon, as reported in the literature, are inconsistent. This study employed a multiple measurement strategy to explore the temporal variations in the effects of exposure to bright light vs. regular office light (1,200 lx vs. 200 lx at eye level, 6,500 K) on the alertness of participants for 5 h in the afternoon. In this study, 20 healthy adults (11 female; mean age 23.25 ± 2.3 years) underwent the Karolinska sleepiness scale (KSS), the auditory psychomotor vigilance test (PVT), and the waking electroencephalogram (EEG) test for two levels of light intervention. The results yielded a relatively lower relative delta power and a relatively higher beta power for the 1,200 lx condition in comparison with the 200 lx condition. However, the light conditions elicited no statistically significant differences in the KSS scores and performance with respect to the PVT. The results suggested that exposure to bright light for 5 h in the afternoon could enhance physiological arousal while exerting insignificant effects on subjective feelings and performance abilities relating to the alertness of the participants.
dc.format.extent 105 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Frontiers in Physiology, Vol.12, 771605
dc.subject (關鍵詞) light; illumination; alertness; light exposure; electroencephalogram
dc.title (題名) Temporal dynamics of subjective and objective alertness during exposure to bright light in the afternoon for 5 h
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.3389/fphys.2021.771605
dc.doi.uri (DOI) https://doi.org/10.3389/fphys.2021.771605