Title: Interaction of the effects of overshadowing and reinforcer devaluation manipulations on instrumental performance
Abstract: Rats were trained on three different responses, and then one of the two reinforcers of each response was devalued by pairings with lithium chloride. During instrumental training, a brief stimulus consistently signaled one of the reinforcers for one of the responses and the alternate reinforcer for one of the other responses. Neither reinforcer was signaled in the case of the third response. The major finding of the experiment is that the effect on subsequent extinction responding of post-conditioning devaluation of one of two reinforcers of a response depends on whether one of the two reinforcers was signaled during training and, if so, whether the reinforcer signaled was the one subsequently devalued. Relative to the level of performance of a response where neither reinforcer was signaled during training, the level of performance of a different response, where one of the two reinforcers was signaled during training, was higher if the signaled reinforcer was the one later devalued and lower if it was the unsignaled reinforcer later devalued.
Publication Year: 1987
Publication Date: 1987-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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