In vivo recording of brain temperatures from multiple site in mice.

核心体温和外周体温是两个不同的生理功能参数。在这项研究中，记录了自由活动小鼠脑深部温度的昼夜变化。将微型热敏电阻探针插入一侧下丘脑和皮层表面。记录自由活动小鼠的脑温度，并进行转轮跑步活动。与夜间活动的行为，昼夜变化的大脑温度被澄清。而且，超日变异也很明显。

The core body temperature and the peripheral one are distinct parameters in physiological function. In this study, circadian variations of deep brain temperature were recorded in freely moving mice. Micro thermistor probes were inserted aiming either into unilateral hypothalamus and the surface in cortex. Brain temperatures were recorded from freely moving mice with wheel running activity. In parallel to nocturnal activity in behavior, circadian variation of brain temperature was clarified. Furthermore, an ultradian variation was obvious as well.：