非正規雇用者を念頭に置いた夜勤時における光環境の違いが日中の作業パフォーマンス及び生理的覚醒水準に与える影響

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In recent years, the number of part-time night shift workers, such as university students who are not able to sleep after night shift work because they must attend class during the daytime, has increased in Japan. In our previous study, the effects of a nap and bright light have been reported in order to improve human performances and physiological conditions after night shift work. However, there are many kinds of night shift work and also a variety of lighting conditions. Therefore, the objective of this study was to investigate whether or not the difference of light during simulated night shiftwork has a change on daytime human performance and physiological arousal. Six healthy university students participated in this experiment. Four conditions were required to complete this experiments since there were three levels of light (3000-5000lx, 1000-1500lx and 100-200lx) during simulated night shiftwork and night time sleep. Sufficient adjusting period was given between each of the conditions. The subject's performance such as an addition test, EEG and Body Temperature were measured at 21:00, 6:00 and during one hour intervals from 8:00 to 19:00 after simulated night shiftwork and night time sleep. When each of subjects was exposed to light of 3000-5000lx and 1000-1500lx during night, their human performance and physiological arousal were increased immediately after simulated night shiftwork. However, the change of human performance and physiological arousal was not continued during day time. Body Temperature was shift to the delay.
2006-03-31

非正規雇用者を念頭に置いた夜勤時における光環境の違いが日中の作業パフォーマンス及び生理的覚醒水準に与える影響

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