Timing during inhibitory conditioning

被引:8
|
作者
Williams, Douglas A. [1 ]
Johns, Kenneth W. [2 ]
Brindas, Mirna
机构
[1] Univ Winnipeg, Dept Psychol, Winnipeg, MB R3B 2E9, Canada
[2] Univ Manitoba, Winnipeg, MB, Canada
关键词
conditioned inhibition; temporal conditioning; appetitive conditioning; summation test; retardation test;
D O I
10.1037/0097-7403.34.2.237
中图分类号
学科分类号
摘要
Analyses of second-by-second conditioned responding into a food receptacle by hungry rats (Rattus norvegicus) found that inhibition varies across the duration of a conditioned stimulus (CS) in a manner consistent with initial training. Variations in the arrival time of the unconditioned stimulus (US) supported temporally specific suppression of responding (Experiment 1). Summation and retardation tests (Experiments 2 and 3, respectively) revealed that points of greatest inhibition coincided with US omission at the time normally specified by the excitor. Our data provide a clear demonstration of fine-grained changes in the time course of inhibitory conditioning for the first time.
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页码:237 / 246
页数:10
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