Timing during inhibitory conditioning
Timing during inhibitory conditioning
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DOI：
10.1037/0097-7403.34.2.237
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发表时间：
2008-04-01
期刊：
影响因子：
--
通讯作者：
Brindas, Mirna
中科院分区：
文献类型：
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作者：
Williams, Douglas A.;Johns, Kenneth W.;Brindas, Mirna
对饥饿大鼠（Rattusnorvegicus）对食物容器的逐秒条件反应的分析发现，抑制作用在条件刺激（CS）的持续时间内发生变化，其方式与初始训练一致。无条件刺激 (US) 到达时间的变化支持对反应的暂时特异性抑制（实验 1）。求和和延迟测试（分别为实验 2 和 3）表明，最大抑制点与通常由兴奋剂指定的时间的 US 遗漏一致。我们的数据首次清楚地证明了抑制调节时间过程中的细粒度变化。
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.