心理学进展

Vol.4 No.3 (May 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
Dissociation and Interaction between Prediction Levels and Stimulus Properties in Conditioned Fear

 

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。

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, 400-408. doi: 10.12677/AP.2014.43056

 

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