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首页> 外文期刊>Cerebral Cortex >Are You Upset? Distinct Roles for Orbitofrontal and Lateral Prefrontal Cortex in Detecting and Distinguishing Facial Expressions of Emotion
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Are You Upset? Distinct Roles for Orbitofrontal and Lateral Prefrontal Cortex in Detecting and Distinguishing Facial Expressions of Emotion

机译：你难过吗？眶额和额前额叶皮层在检测和区分情绪面部表情中的不同作用

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摘要

Navigating our complex social world requires effective processing of subtle emotional signals, such as those conveyed by facial expressions. Failure to do so may underlie some of the disabling social–emotional deficits common in a range of neuropsychiatric and neurological conditions. Prefrontal cortex (PFC) has long been implicated in these processes, but the particular contributions of subregions within PFC remain unclear. We used a sensitive facial emotion rating task in patients with focal lesions to different regions within PFC to identify distinct contributions of 2 prefrontal regions to recognizing emotions from facial expressions. A combination of region-of-interest and voxel-based lesion–symptom mapping established that damage to ventromedial PFC impaired the detection of subtle facial expressions of emotion. Such patients had difficulty distinguishing emotional from neutral expressions. In contrast, patients with left ventrolateral PFC were able to detect the presence of emotional signals but had difficulty discriminating between specific emotions. These effects were regionally specific: Dorsomedial prefrontal damage had no effect on either aspect of emotion recognition. These findings suggest that separable processes relying critically on distinct regions within PFC responsible, on the one hand, for detecting emotional signals from facial expressions and, on the other, for correctly classifying such signals.
机译：在复杂的社会世界中穿行，需要有效地处理微妙的情感信号，例如面部表情所传达的信号。否则，可能会导致一系列神经精神病和神经疾病中常见的致残性社会情感缺陷。额叶前皮质（PFC）长期以来一直牵涉到这些过程，但仍不清楚PFC内的次区域的具体贡献。我们在PFC内不同区域的局灶性病变患者中使用了敏感的面部情感评估任务，以识别2个前额叶区域在识别面部表情情感方面的独特贡献。感兴趣的区域和基于体素的病变-症状映射相结合，可以确定对腹侧PFC的损害会损害对面部表情的微妙检测。这些患者难以区分情绪表达和中性表达。相反，患有左心室PFC的患者能够检测到情绪信号的存在，但是难以区分特定情绪。这些影响是区域性的：背阔肌前额叶损伤对情绪识别的任何方面均没有影响。这些发现表明，可分离的过程严重依赖于PFC内的不同区域，一方面负责检测来自面部表情的情感信号，另一方面负责对此类信号进行正确分类。

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  • 来源
    《Cerebral Cortex》 |2012年第12期|p.2904-2912|共9页
  • 作者

    Ami Tsuchida and Lesley K. Fellows;

  • 作者单位

    Department of Neurology &

    Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada;

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