Beale I L
J Exp Anal Behav. 1970 Nov;14(3):345-52. doi: 10.1901/jeab.1970.14-345.
Three groups of pigeons were trained on a red-green discrimination in which the stimuli were alternately presented in a multiple schedule of reinforcement. The discrimination was reversed 24 times. Groups were given 1, 2, or 4 hr of training on each discrimination. Increasing the length of training had two principal effects on reversal performance: it increased the rate of extinction of responding to one of the stimuli and increased the rate of reacquisition of responding to the other. The latter effect involved both an increase in reacquisition of responding to a positive stimulus within reversals and an increase in recovery of responding to the previous negative stimulus between reversals. Improvements in performance of each group over the series of reversals were qualitatively similar to the two effects of length of training on each discrimination, and were analogous to effects obtained in other studies involving overtraining and successive reversals of simultaneous discriminations.
三组鸽子接受了红-绿辨别训练，其中刺激在多重强化程序中交替呈现。辨别反转了24次。每组在每次辨别训练中分别接受1小时、2小时或4小时的训练。增加训练时长对反转表现有两个主要影响：它提高了对其中一个刺激反应的消退速度，以及提高了对另一个刺激反应的重新习得速度。后一种影响既包括在反转过程中对正向刺激反应的重新习得增加，也包括在反转之间对先前负向刺激反应的恢复增加。在一系列反转过程中，每组表现的改善在质量上与训练时长对每次辨别的两个影响相似，并且类似于在其他涉及过度训练和同时辨别连续反转的研究中获得的效果。
