Light environment suitable for our daily activities

适合我们日常活动的光环境

• 批准号: 20770200
• 负责人: TAKASU Nana
• 金额: $ 2.91万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20770200/
• 关键词: 光環境; 生体リズム; 睡眠; 睡眠覚醒; メラトニン; 深部体温

Circadian rhythms observed in all psychophysiological functions are produced by the circadian clock located in the suprachiasmatic nucleus (SCN) of the hypothalamus. Intrinsically, the SCN oscillates with slightly longer than 24 hr, but generally, repeated bright light exposures at 24-hr intervals entrain the endogenous period. However, recently, irregular sleep-wake habits have been established among young people, which have disrupted the light-dark cycle. Furthermore, the number of people who are suffering from psychophysiological disorder is increasing. Therefore, we aimed at clarifying relations between the habitual sleep-wake habits and daytime psychophysiological states. In results, we demonstrated that daytime psychophysiological functions were deteriorated when the irregularity of sleep-wake rhythm was exceeded more than 3-4 hours. However, the deteriorated psychophysiological functions were recovered when irregular sleep-wake rhythm was regularized for 6 days. The present findings suggested that the regularization of sleep-wake schedule could modulate the daytime psychophysiological functions in such a way as is more adaptive to the daytime activity.

在所有心理生理功能中观察到的昼夜节律是由位于下丘脑视交叉上核（SCN）中的昼夜节律钟产生的。内在的，SCN振荡略长于24小时，但一般来说，在24小时的间隔反复明亮的光照射夹带内源性的时期。然而，最近，年轻人中建立了不规则的睡眠-觉醒习惯，这打乱了光暗周期。此外，患有心理生理疾病的人数正在增加。因此，我们的目的是澄清之间的关系，习惯性的睡眠-觉醒习惯和白天的心理生理状态。结果表明，当睡眠-觉醒节律不规则超过3-4小时时，白天的心理生理功能就会恶化。但经6天的睡眠-觉醒节律调整后，患者的心理生理功能恢复正常。本研究结果表明，睡眠-觉醒时间表的规律化可以调节白天的心理生理功能，使其更适应白天的活动。