遗忘与条件性抑制：时间辨别作用
Forgetting and conditioned suppression: role of a temporal discrimination.
作者信息
Hammond L J, Maser J
出版信息
J Exp Anal Behav. 1970 May;13(3):333-8. doi: 10.1901/jeab.1970.13-333.
Abstract
Several experiments have found complete retention of conditioned suppression when overall suppression to the signal for shock was measured. The present experiment examined retention of conditioned suppression but did so with a paradigm that produced temporal discrimination of shock occurrence. Nine rats were exposed to a flashing light signal of 5-min duration that always terminated with a shock. After several months, a temporal discrimination was well established, as shown by maximum suppression toward the end of the signal period. After remaining in the home cage for 25 days, the rats were again subjected to the conditioning procedure. The overall level of suppression remained the same but the temporal discrimination was not observed.
摘要
几项实验发现，当测量对电击信号的总体抑制时，条件性抑制能完全保持。本实验研究了条件性抑制的保持情况，但采用的范式能对电击发生进行时间辨别。九只大鼠暴露于持续5分钟的闪烁光信号下，该信号总是以电击结束。几个月后，时间辨别能力已充分建立，信号期结束时抑制达到最大值。在饲养笼中饲养25天后，大鼠再次接受条件化程序。抑制的总体水平保持不变，但未观察到时间辨别。
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