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zeitgeber A zeitgeber is any external or environmental cue that entrains or synchronizes an organism's biological rhythms to the Earth's 24-hour light/dark cycle and 12 month cycle.〔Ehlers, C.L., Frank, E. & Kupfer, D.J. (1988). Social zeitgebers and biological rhythms. ''Arch Gen Psychiatry, 45'', 948–952.〕〔Grandin, L.D., Alloy, L.B., & Abramson, L.Y. (2006). The social zeitgeber theory, circadian rhythms, and mood disorders: Review and evaluation. ''Clinical Psychology Review 26'', 679–694.〕 ==History== The term "zeitgeber" (German for "time giver" or "synchronizer") was first used by Jürgen Aschoff, one of the founders of the field of chronobiology. His work demonstrated the existence of endogenous (internal) biological clocks, which synchronize biological rhythms. In addition, he found that certain exogenous (external) cues, which he called zeitgebers, influence the timing of these internal clocks.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「zeitgeber」の詳細全文を読む
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