Effective connectivity between amygdala and orbitofrontal cortex differentiates the perception of facial expressions.
Effective connectivity between amygdala and orbitofrontal cortex differentiates the perception of facial expressions.
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DOI：
10.1080/17470910802453105
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发表时间：
2009
影响因子：
2
通讯作者：
Aharon I
中科院分区：
文献类型：
--
作者：
Liang X;Zebrowitz LA;Aharon I
情感研究既受以下观点的指导：情绪是维度空间中的点，例如效价或接近-退出，以及情绪是离散类别的观点。我们确定杏仁核与内侧眶额皮质（MOFC）和外侧眶额皮质（LOFC）的有效连接是否以与维度和/或分类视图一致的方式区分情绪面孔的感知。从左 MOFC 到杏仁核的更有效的连接可以区分积极和中性的表达与消极的愤怒、厌恶和恐惧表达。从右 LOFC 到杏仁核的更有效的连接可以区分有利于感知者接近的情绪表达（快乐、中性和恐惧）和引起感知者退缩的愤怒表达。最后，与分类观点一致的是，对恐惧、愤怒和厌恶的反应存在独特的连通模式，尽管对快乐的表情没有反应，这与中性的表情没有什么不同。
Emotion research is guided both by the view that emotions are points in a dimensional space, such as valence or approach–withdrawal, and by the view that emotions are discrete categories. We determined whether effective connectivity of amygdala with medial orbitofrontal cortex (MOFC) and lateral orbitofrontal cortex (LOFC) differentiates the perception of emotion faces in a manner consistent with the dimensional and/or categorical view. Greater effective connectivity from left MOFC to amygdala differentiated positive and neutral expressions from negatively valenced angry, disgust, and fear expressions. Greater effective connectivity from right LOFC to amygdala differentiated emotion expressions conducive to perceiver approach (happy, neutral, and fear) from angry expressions that elicit perceiver withdrawal. Finally, consistent with the categorical view, there were unique patterns of connectivity in response to fear, anger, and disgust, although not in response to happy expressions, which did not differ from neutral ones.
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