Pickard G E, Kahn R, Silver R
Physiol Behav. 1984 May;32(5):763-6. doi: 10.1016/0031-9384(84)90191-4.
The circadian rhythm of hamster locomotor activity "splits" into two distinct circadian components during conditions of constant illumination. To determine if the circadian rhythm of body temperature also splits under these conditions, body temperature and locomotor activity were monitored concurrently in animals housed in constant illumination. Splitting of the body temperature rhythm into two circadian components was observed in animals manifesting split activity rhythms. Concurrent splitting of both rhythms suggests a common mechanism either for the generation or coupling of these rhythms.
在持续光照条件下，仓鼠运动活动的昼夜节律“分裂”为两个不同的昼夜节律成分。为了确定体温的昼夜节律在这些条件下是否也会分裂，对饲养在持续光照环境中的动物同时监测体温和运动活动。在表现出分裂活动节律的动物中观察到体温节律分裂为两个昼夜节律成分。两种节律同时分裂表明这些节律的产生或耦合存在共同机制。
