预测水平、刺激性质在条件性恐惧形成中的分离与交互效应
Dissociation and Interaction between Prediction Levels and Stimulus Properties in Conditioned Fear
DOI: 10.12677/AP.2014.43056, PDF, HTML, 下载: 2,753  浏览: 6,221  科研立项经费支持
作者: 曾祥星, 郑楚华, 庄楚群, 杜 娟, 郑希付：华南师范大学心理学院，广州
关键词: 预测水平；刺激性质；条件性恐惧；分离效应；Prediction Level； Stimulus Properties； Conditioned Fear； Dissociation Effect
摘要: 不仅刺激性质引起条件性恐惧，而且预测水平也能引起条件性恐惧，那么二者之间存什么样的分离与交互作用呢？对此，采用事件相关电位，把预测水平分为可预测与不可预测两个水平，刺激性质分为中性刺激和负性刺激。采用2 × 2被试内实验设计，探索预测水平、刺激性质在条件性恐惧形成中的分离效应。实验结果发现：在可预测水平下，刺激性质之间ERP波形在加工早期就存在显著差异，出现了分离；在不可预测水平下，刺激性质之间的ERP波形在加工早期差异不显著；不同刺激性质在不同预测水平上ERP波形差异显著。这些结果表明预测水平、刺激性质在条件性恐惧形成中存在分离与交互效应。
Abstract: Conditioned fear is caused by not only stimulus properties but also prediction level. Then what dissociation and interaction are between prediction levels and stimulus properties? Using event-related potentials (ERP), prediction levels were divided as unprediction and prediction; stimulus properties were divided as neutral and aversion stimulus. Use 2 × 2 within-subjects experimental design, to explore the dissociation between prediction levels and stimulus properties in the acquisition phase of conditioned fear. These data found that: the ERP between the stimulus properties had a significant difference at an early stage of processing under prediction; the ERP between the stimulus properties did not have a significant difference at an early stage of processing under unprediction; the ERP of different stimulus properties had a significant difference under different prediction levels. The results showed there were dissociation and interaction between prediction levels and stimulus properties in conditioned fear.
文章引用：曾祥星, 郑楚华, 庄楚群, 杜娟, 郑希付 (2014). 预测水平、刺激性质在条件性恐惧形成中的分离与交互效应. 心理学进展, 4(3), 400-408. http://dx.doi.org/10.12677/AP.2014.43056

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