Extinction of conditioned inhibition through nonreinforced presentation of the inhibitor

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• 作者：Klaus G. Melchers (1)
  Susann Wolff (2)
  Harald Lachnit (2)
  
• 刊名：Psychonomic Bulletin & Review
• 出版年：2006
• 出版时间：August 2006
• 年：2006
• 卷：13
• 期：4
• 页码：662-667
• 全文大小：116KB
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• 作者单位：Klaus G. Melchers (1)
  Susann Wolff (2)
  Harald Lachnit (2)
  
  1. Psychologisches Institut, Universit?t Zürich, Binzmühlestrasse 14/12, CH-8050, Zürich, Switzerland
  2. Philipps-Universit?t Marburg, Marburg, Germany
  

文摘

In previous studies that have tried to extinguish conditioned inhibition through nonreinforced presentations of the inhibitor, researchers have repeatedly failed to find evidence for such extinction. The present study revealed that extinction can be achieved through nonreinforcement of the inhibitor, depending on properties of the reinforcer. In a human causal learning experiment, we found complete extinction in a scenario in which the reinforcer could take on negative values. Thereby, this scenario reflected the assumed symmetrical continuum on which associative strength can vary, according to the Rescorla-Wagner theory of associative learning. In contrast to this, the inhibitory cue retained its inhibitory potential in another condition, in which the scenario did not allow negative values of the reinforcer. nt]mis|Klaus G. Melchers has previously published under the surname “Lober.-Susann Wolff is now working at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany