INSTRUMENTAL RESPONDING FOLLOWING REINFORCER DEVALUATION
INSTRUMENTAL RESPONDING FOLLOWING REINFORCER DEVALUATION
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DOI：
10.1080/14640748108400816
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发表时间：
1981-01-01
期刊：
影响因子：
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通讯作者：
DICKINSON, A
中科院分区：
文献类型：
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作者：
ADAMS, CD;DICKINSON, A
在两个实验中，研究人员对饥饿的大鼠进行了杠杆按压训练，以获得一种食欲强化物，此外，他们还接触了另一种不依赖杠杆按压的食物。在第一个实验中，每种食物在不同的日子里暴露，而在第二个实验中，大鼠在每个阶段严格交替暴露于每种食物。随后，实验组对强化物产生厌恶，对照组对非偶然食物产生厌恶。在这两个实验中，厌恶强化物的动物在灭绝测试中的反应低于厌恶非偶然食物的动物。随后的再获得测试证实，对照组对非偶然食物的厌恶程度与实验组对强化物的厌恶程度相当。结果讨论了强化是否在接触工具偶然性所建立的联想结构中编码。
In two experiments, hungry rats were given instrumental lever-press training for an appetitive reinforcer and, in addition, were exposed to another type of food which was not contingent on lever pressing. In the first experiment, exposure to each type of food was on separate days, whereas in the second experiment rats were exposed to each type of food in strict alternation within each session. Subsequently, a food aversion was conditioned to the reinforcer for the experimental group and to the non-contingent food for the control group. In both experiments, animals with an aversion to the reinforcer responded less in an extinction test than animals with an aversion to the non-contingent food. Subsequent reacquisition tests confirmed that the aversion to the non-contingent food in the control group was of comparable strength with that to the reinforcer in the experimental group. The results were discussed in terms of whether the reinforcer is encoded in the associative structure set up by exposure to an instrumental contingency.