Context specificity of sensory preconditioning: Implications for processes of within-event learning
Context specificity of sensory preconditioning: Implications for processes of within-event learning
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感觉预处理的情境特异性：对事件内学习过程的影响
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
G. Hall
中科院分区：
文献类型：
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作者：
J. Ward;M. Symonds;G. Hall
Rescorla 和 Cunningham (1978) 使用的一种用于感觉预处理的味觉厌恶程序的变体被用于事件内学习的情境依赖性的研究。在两项实验中，大鼠接受了同时接触风味化合物 AX 的第一阶段；在第 2 阶段，味道 X 与疾病配对，并测量由 A 引起的厌恶倾向。研究发现，如果第一阶段和测试集是在截然不同的环境中进行的，那么由于这种训练，受试者不太可能回避口味 A。当环境变化发生在风味 A 测试之前（实验 1）和发生在阶段 2 之前（实验 2）时，这种效果都很明显。这些结果表明，正如序列关联中经常发现的那样，事件内关联的检索受到上下文控制。讨论了这些发现对解释知觉学习效果的影响。
A variant of the taste aversion procedure for sensory preconditioning, as used by Rescorla and Cunningham (1978), was employed in a study of the context dependency of within-event learning. In two experiments, rats received Phase 1 exposure to a simultaneous flavor compound, AX; flavor X was paired with illness during Phase 2, and any tendency for the resulting aversion to be elicited by A was measured. It was found that subjects were less likely to shun flavor A as a consequence of this training if the Phase 1 and test episodes were conducted in distinctively different contexts. This effect was evident both when the change of context occurred just before the test with flavor A (Experiment 1) and when it occurred before Phase 2 (Experiment 2). These results were taken to imply that, as is often found with serial associations, the retrieval of within-event associations is subject to contextual control. The implications of these findings for the interpretation of perceptual learning effects are discussed.