0072 The Effect Of Circadian Action Factor (caf) Of Artificial Light On The Level Of Melatonin And Subjective Alertness

[摘要] IntroductionThe invention of artificial light promoted the development of civilization, but it disrupts the normal regulation of human physiology and psychology, such as hormone synthesis, sleep-wake cycle, and the level of alertness. Previous researches found that high color temperature and Illuminance of light suppress pre-sleep melatonin secretion as well as reduce subjective alertness. Lately, a newly proposed formula, Equivalent Melaopic Lux (EML) = Circadian Action Factor (CAF) * Lux, suggests that CAF could be a better predictor for melatonin suppression effect. Hence, the present study examine this hypothesis by comparing the effects of lights with similar color temperature but difference CAF on melatonin suppression and subjective alertness.

[学科分类] 生理学