VARIATIONS IN THE SENSITIVITY OF INSTRUMENTAL RESPONDING TO REINFORCER DEVALUATION
VARIATIONS IN THE SENSITIVITY OF INSTRUMENTAL RESPONDING TO REINFORCER DEVALUATION
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DOI：
10.1080/14640748208400878
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发表时间：
1982-01-01
期刊：
影响因子：
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通讯作者：
ADAMS, CD
中科院分区：
文献类型：
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作者：
ADAMS, CD
在5个实验中，饥饿的大鼠被训练对蔗糖分解器做出杠杆按压反应。随后，通过调节对蔗糖的食物厌恶来使蔗糖贬值，并且在灭绝测试中评估了大鼠将关于工具偶然性的知识与从厌恶训练中获得的知识相结合的能力。实验I显示成功的整合有限，但不延长仪器培训。实验二表明，关键因素是训练的间隔，成功的整合后，集中，而不是分布式训练。第三个实验涉及分布式的经验，而不是分布式的反应实践，在整合失败。实验四表明，如果食物厌恶学习的分布是不同的工具培训，然后失败的整合可能会导致。这一发现能够解释以前研究中观察到的训练效果的分布，但不能解释延长训练的效果。实验V复制了在实验I中看到的扩展训练效果，并提供了证据表明，这可能反映了暴露的程度，而不是响应实践的程度。
In 5 experiments hungry rats were trained to make a lever press response for a sucrose reinforcer. That sucrose was subsequently devalued by conditioning a food-aversion to it, and the ability of the rats to integrate knowledge about the instrumental contingency with that gained from aversion training was assessed in an extinction test. Experiment I showed successful integration following limited but not extended instrumental training. Experiment II suggestd that the crucial factor was the spacing of training; successful integration was seen after massed but not distributed training. The 3rd experiment implicated distributed experience with the reinforcer, rather than distributed response practice, in failures of integration. Experiment IV showed that if the distribution of food-aversion learning was dissimilar to that of instrumental training then a failure of integration could result. This finding was able to account for the distribution of training effects seen in previous studies, but not the effect of extended training. Experiment V replicated the extended training effect seen in Experiment I, and provided evidence that this may reflect the degree of exposure to the reinforcer rather than the extent of response practice.