Kohsaka M, Fukuda N, Kobayashi R, Honma H, Sakakibara S, Koyama E, Nakano O, Matsubara H
Sapporo Hanazono Hospital, Japan.
Psychiatry Clin Neurosci. 1998 Apr;52(2):252-3. doi: 10.1111/j.1440-1819.1998.tb01059.x.
Subjective sleep feelings and motor activity were measured in seven healthy elderly subjects for 6 days. The subjects were exposed to bright light (6000 lux) for 30 min in the morning or instructed to sit in front of a desktop lighting device without light. The average level of motor activity during the night was significantly decreased in the bright light condition, compared with the controlled condition. However, daytime motor activity did not show significant differences between the two conditions. From these findings, even a short duration of morning bright light is effective in maintaining sleep without changing daytime activity.
对7名健康老年人的主观睡眠感受和运动活动进行了为期6天的测量。这些受试者在早晨接受30分钟的强光照射(6000勒克斯),或被指示坐在无光照的桌面照明设备前。与对照条件相比,强光条件下夜间的平均运动活动水平显著降低。然而,两种条件下白天的运动活动没有显著差异。从这些发现来看,即使是短时间的早晨强光照射也能有效维持睡眠,而不改变白天的活动。