FEEDING SCHEDULES AND THE CIRCADIAN ORGANIZATION OF BEHAVIOR IN THE RAT
FEEDING SCHEDULES AND THE CIRCADIAN ORGANIZATION OF BEHAVIOR IN THE RAT
复制标题
DOI：
10.1016/s0166-4328(80)80049-0
复制
发表时间：
1980-01-01
影响因子：
2.7
通讯作者：
TERMAN, M
中科院分区：
文献类型：
--
作者：
BOULOS, Z;ROSENWASSER, AM;TERMAN, M
饲养和饮水行为的大鼠保持在恒定的光被记录之前，期间和之后的喂养时间表与周期内或外的昼夜节律夹带的范围内。无论时期，所有的时间表立即导致部分或完全同步的饮酒行为，但未能夹带自由运行的昼夜节律的喂养和饮酒节奏。饮酒可以被动地由定期获得食物驱动。喂食时间表诱导的24 h周期性在喂食时间表终止后仍能持续数天，喂食时间表在诱导的昼夜节律范围内（而不是在诱导的昼夜节律范围外）时，大鼠表现出预期活动;第三，视交叉上核（SCN）的损伤，导致立即消除自由运行的节奏，并没有改变进食时间表的节奏影响。这些结果为两种不同的昼夜节律系统参与大鼠的行为控制提供了证据。这两种系统似乎具有不同的夹带特性和不同的生理底物。
Feeding and drinking behavior of rats maintained in constant light were recorded before, during and after feeding schedules with periods lying within or outside the range of circadian entrainment. Regardless of period, all schedules immediately resulted in the partial or complete synchronization of drinking behavior, but failed to entrain the free-running circadian feeding and drinking rhythms. Drinking can be passively driven by periodic access to food. Apparently a separate circadian system was entrained by feeding schedules: 1st, the 24 h periodicity induced by 24 h feeding schedules often continued for several days after termination of the schedules; 2nd, the rats showed anticipatory activity under schedules with periods within, but not outside, the circadian range of entrainment; 3rd, lesions of the suprachiasmatic nuclei (SCN), which resulted in the immediate elimination of free-running rhythms, did not alter the rhythmic influences of the feeding schedules. These results provide evidence for the participation of 2 distinct circadian systems in the control of behavior in the rat. The 2 systems appear to have different entrainment characteristics and separate physiological substrates.