Vodolazhskaia M G, Arushanian E B
State University, Medical Academy, Stavropol.
Zh Vyssh Nerv Deiat Im I P Pavlova. 2000 Nov-Dec;50(6):1041-5.
Outbred rats (n = 60) were trained to count 20-s intervals (by the technique developed by J. Bures) with drinking reinforcement. The animals were divided in three groups, which were subjected to conditioning from 7.00 to 9.00 a.m, from 1.00 to 3.00 p.m., and from 8.00 to 10.00 p.m, respectively. Conditioning was most efficient in the morning and least efficient in the day-time. Thus, the better capability of rats for time perception and conditioning on the basis of time perception in transitional phases of a day (from light to darkness and on the contrary) is in agreement with circadian rhythm of locomotion of these nocturnal animals.
选用远交群大鼠（n = 60），通过饮水强化训练其对20秒间隔进行计数（采用J. 布雷什研发的技术）。将动物分为三组，分别于上午7点至9点、下午1点至3点以及晚上8点至10点进行条件反射训练。条件反射训练在早晨效率最高，白天效率最低。因此，大鼠在一天的过渡阶段（从明到暗及相反情况）基于时间感知进行时间感知和条件反射的能力更强，这与这些夜行性动物的昼夜节律运动相一致。
