Fuller C A, Sulzman F M, Moore-Ede M C
Am J Physiol. 1979 Mar;236(3):R153-61. doi: 10.1152/ajpregu.1979.236.3.R153.
The characteristics and control of the circadian rhythms of core body temperature (colonic) and skin temperature (tail) were studied in chair-acclimatized squirrel monkeys (Saimiri sciureus). When animals were entrained to a light-dark cycle (12 h 600 lx; 12 h less than 1 lx) these two temperatures displayed prominent, reproducible, tightly coupled circadian rhythms. In contsant light of 600 lx, where no other effective circadian time cues were present, both temperature rhythms persisted with free-running periods. Within each animal, however, these rhythms were not as tightly coupled to one another as in LD. On occasion colonic and tail temperature rhythms free-ran with different circadian periods and some animals demonstrated "splitting" of the colonic temperature rhythm, with the colonic temperature rhythm displaying a bimodal pattern. These results suggest that the circadian rhythm of body temperature in primates is under the control of more than one potentially independent circadian oscillator.
在适应椅子环境的松鼠猴（松鼠猴属）中研究了核心体温（结肠）和皮肤温度（尾巴）的昼夜节律特征及调控。当动物被置于明暗循环（12小时600勒克斯光照；12小时光照强度小于1勒克斯）中时，这两种温度呈现出显著、可重复且紧密耦合的昼夜节律。在600勒克斯的持续光照下，不存在其他有效的昼夜节律时间线索，两种温度节律均以自由运行周期持续存在。然而，在每只动物体内，这些节律彼此之间的耦合程度不如在明暗循环条件下紧密。有时结肠和尾巴温度节律以不同的昼夜周期自由运行，一些动物的结肠温度节律出现“分裂”，结肠温度节律呈现双峰模式。这些结果表明，灵长类动物体温的昼夜节律受不止一个潜在独立的昼夜振荡器控制。
