Competition between an avoidance response and a safety signal: Evidence for a single learning system
Competition between an avoidance response and a safety signal: Evidence for a single learning system
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DOI：
10.1016/j.biopsycho.2011.09.007
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发表时间：
2013-01-01
影响因子：
2.6
通讯作者：
Weidemann, Gabrielle
中科院分区：
文献类型：
--
作者：
Lovibond, Peter F.;Chen, Shirley X.;Weidemann, Gabrielle
两个实验研究了仪器回避反应和巴甫洛夫安全信号与人类恐惧条件反射范式中电击遗漏之间的竞争。自我报告的休克预期和皮肤电导反应是一致的，通过事先培训的巴甫洛夫应急工具的应急学习阻塞，反之亦然。研究结果支持一个共同的学习机制的基础巴甫洛夫和工具性条件反射的想法。期望数据表明，这种学习机制是认知的性质，巴甫洛夫和工具性学习涉及外部和内部归因，分别。因此，该程序可以作为一个实验室模型的归因过程中参与收购的威胁预期焦虑和焦虑症。皇冠版权所有（C）2011由Elsevier B.V.出版。保留所有权利。
Two experiments examined competition between an instrumental avoidance response and a Pavlovian safety signal for association with omission of electric shock in a human fear conditioning paradigm. Sel-freported shock expectancies and skin conductance responses were consistent with blocking of learning of the instrumental contingency by prior training of the Pavlovian contingency, and vice versa. The results support the idea that a common learning mechanism underlies both Pavlovian and instrumental conditioning. The expectancy data suggest that this learning mechanism is cognitive in nature, and that Pavlovian and instrumental learning involve external and internal attributions, respectively. The procedure may thus serve as a laboratory model for attributional processes involved in the acquisition of threat expectancies in anxiety and anxiety disorders. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.