Circadian time perception
Circadian time perception
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DOI：
10.1037/0097-7403.27.1.68
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发表时间：
2001-01-01
期刊：
影响因子：
--
通讯作者：
Crystal, JD
中科院分区：
文献类型：
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作者：
Crystal, JD
对预期进餐的变异性进行了研究。Sprague-Dawley大鼠通过在3小时间隔内检查食物来源来获得食物。其他时间没有食物。在实验1中，在12小时的光暗周期中，在光偏移后3或7小时开始进餐。实验2在恒定黑暗中进行，餐间间隔为14、22、22.5、24、25.5、26或34小时。饭前检查次数增加。大鼠在昼夜节律范围内（22-26小时）的时间间隔比在此范围外（3-14和34小时）的时间间隔具有更低的变异性。对选定间隔进行更高精度的计时会违反标量属性。接近昼夜节律振荡器可提高计时精度。可变性可用于识别具有非昼夜节律周期的振荡器。
The variability of anticipating a meal was investigated. Sprague-Dawley rats earned food by inspecting a food source during a 3-hr interval. Food was not available at other times. In Experiment 1, the meal started 3 or 7 hr after Light offset in a 12-hr light-dark cycle. Experiment 2 was conducted in constant darkness with 14-, 22-, 22.5-, 24-, 25.5-, 26-, or 34-hr intermeal intervals. Inspections increased before the meal. Rats timed intervals in the circadian range (22-26 hr) with lower variability than that for intervals outside this range (3-14 and 34 hr). Higher precision in timing selected intervals violates the scalar property. Proximity to a circadian oscillator improves timing precision. variability may be used to identify oscillators with noncircadian periods.