MEMORY FOR FEEDING TIME - POSSIBLE DEPENDENCE ON COUPLED CIRCADIAN OSCILLATORS
MEMORY FOR FEEDING TIME - POSSIBLE DEPENDENCE ON COUPLED CIRCADIAN OSCILLATORS
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DOI：
10.1016/0031-9384(84)90064-7
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发表时间：
1984-01-01
影响因子：
2.9
通讯作者：
ADLER, NT
中科院分区：
文献类型：
--
作者：
ROSENWASSER, AM;PELCHAT, RJ;ADLER, NT
维持有限的每日摄食计划的大鼠发展出与光昼夜活动节律共存的食物预期活动节律。这些食物预期节律似乎依赖于食物可携带的昼夜节律振荡器，它与光可携带的昼夜节律振荡器系统是分开和不同的。研究了假定的食物可携带振荡器在存在和不存在摄食计划以及光-暗循环和恒定光下的长期行为。在没有喂食时间表的情况下，食物可携带振荡器可能表现出持续的自我维持振荡，食物和光可携带的昼夜节律振荡器可能表现出不同程度的耦合，这取决于喂食条件。这种灵活的耦合安排可以使振荡器系统在具有稳定和不稳定环境周期的行为的自适应时间协调中充当连续咨询时钟。
Rats maintained on limited-access daily feeding schedules develop food-anticipatory activity rhythms which coexist with the photic circadian activity rhythm. These food anticipatory rhythms appear to depend upon a food-entrainable circadian oscillator which is separate and distinct from the light-entrainable circadian oscillator system. The long-term behavior of the putative food-entrainable oscillator in the presence and in the absence of a feeding schedule and under light-dark cycles and constant light was studied. A food-entrainable oscillator may show persisting self-sustained oscillations in the absence of a feeding schedule and the food- and light-entrainable circadian oscillators may show varying degrees of coupling, depending upon feeding conditions. Such a flexible coupling arrangement may allow the oscillator system to function as a continuously consulted clock in the adaptive temporal coordination of behavior with stable and unstable environmental periodicities.