Ravault J P, Chesneau D
Station de Physiologie de la Reproduction des Mammifères Domestiques, INRA, Nouzilly, France.
J Pineal Res. 1996 Nov;21(4):218-24. doi: 10.1111/j.1600-079x.1996.tb00289.x.
Previous data have demonstrated that a single 1-hr light pulse at night affects the secretion of melatonin in the ram if it was given at the appropriate time. This paper reports the effect on melatonin secretion of a 1-hr light pulse given at two different times at night to two groups of rams kept in constant darkness the day following light application. It appears that the animals were able to remember the light pulse if it was given 12 hr but not 9 hr after the lights were turned off. This memory could possibly be stored in the suprachiasmatic nucleus as reported recently in the rat.
先前的数据表明，如果在合适的时间给予，夜间单次1小时的光脉冲会影响公羊褪黑素的分泌。本文报告了在光照后的第二天，在夜间两个不同时间对两组处于持续黑暗中的公羊给予1小时光脉冲对褪黑素分泌的影响。似乎如果在关灯后12小时而非9小时给予光脉冲，动物能够记住该光脉冲。这种记忆可能如最近在大鼠中所报道的那样，存储在视交叉上核中。
