Elmore S K, Betrus P A, Burr R
Department of Psychosocial Nursing, University of Washington, Seattle 98195.
Res Nurs Health. 1994 Dec;17(6):471-8. doi: 10.1002/nur.4770170610.
The availability of sufficient zeitgebers is essential for entrainment of circadian rhythms. Bright light is an important human zeitgeber. However, social cues acting through the sleep-wake cycle may also be important in the entrainment of human rhythms. Current research suggests that humans receive inadequate and sporadic exposure to bright light. Social cues, although less powerful, may be an important form of entrainment for contemporary humans, and also serve to augment the effects of available bright light. Both light and social zeitgebers should be investigated for their roles in the genesis, prevention, and treatment of alterations in health.
有足够的授时因子对于昼夜节律的同步化至关重要。明亮光线是重要的人类授时因子。然而，通过睡眠-清醒周期起作用的社会线索在人类节律的同步化中可能也很重要。当前研究表明，人类接触明亮光线的机会不足且不规律。社会线索虽然作用较弱，但可能是当代人类一种重要的同步化形式，也有助于增强现有明亮光线的效果。对于光线和社会授时因子在健康改变的发生、预防和治疗中的作用都应进行研究。
