EFFECT OF REINFORCER DEVALUATION ON DISCRIMINATIVE CONTROL OF INSTRUMENTAL BEHAVIOR
EFFECT OF REINFORCER DEVALUATION ON DISCRIMINATIVE CONTROL OF INSTRUMENTAL BEHAVIOR
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DOI：
10.1037/0097-7403.16.1.40
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发表时间：
1990-01-01
期刊：
影响因子：
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通讯作者：
RESCORLA, RA
中科院分区：
文献类型：
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作者：
COLWILL, RM;RESCORLA, RA
两个实验考察了强化物贬值对Sprague-Dawley大鼠辨别刺激（Sd）控制工具性行为能力的影响。在实验1中，强化物贬值降低但没有消除Sd控制原始反应表现的能力，并将其控制转移到用相同强化物训练的新反应上。在实验2中，强化物直接进入口腔，贬值效果更为完全。然而，用不同的强化物重新训练反应部分恢复了Sd控制该反应表现的能力。这些结果表明，当强化物完全贬值时，Sd可能不会增强其训练反应，但可能会促进与其共享强化物的反应，只要这些反应与某些保持其价值的强化物相关。讨论了这些结果对辨别刺激控制工具行为方式的影响。
Two experiments examined the effect of reinforcer devaluation on the ability of a discriminative stimulus (Sd) to control instrumental behavior in Sprague-Dawley rats. In Experiment 1 reinforcer devaluation reduced, but did not eliminate, the ability of the Sd to control performance of the original response and to transfer its control to a new response trained with the same reinforcer. The effect of devaluation was more complete in Experiment 2, in which the reinforcer was delivered directly into the oral cavity. However, retraining the response with a different reinforcer partially restored the ability of the Sd to control performance of that response. These results suggest that an Sd may not augment its trained responses when the reinforcer has been completely devalued but may promote responses with which it shares a reinforcer, as long as those responses are associated with some reinforcer that retains its value. The implications of these results for the way that discriminative stimuli control instrumental behavior are discussed.