Common and distinct neural responses during direct and incidental processing of multiple facial emotions
Common and distinct neural responses during direct and incidental processing of multiple facial emotions
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DOI：
10.1016/s1053-8119(03)00303-3
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发表时间：
2003-09-01
期刊：
影响因子：
5.7
通讯作者：
Dolan, RJ
中科院分区：
文献类型：
--
作者：
Winston, JS;O'Doherty, J;Dolan, RJ
无论是共同的或不同的神经系统支持不同的情绪感知，以及这些系统在情绪感知过程中自动参与的程度都没有得到解决。我们进行了一个事件相关的功能磁共振成像实验中，受试者看到变形的情绪面孔显示低或高强度的厌恶，恐惧，幸福，或悲伤的两个任务条件下。杏仁核和梭状皮质对所有情绪的高强度表达做出反应，而与任务无关。右侧上级颞沟表现出情绪导向任务和高强度情绪的叠加效应。腹内侧前额叶和躯体感觉皮层，涉及提供躯体状态的代表，在明确的情绪判断过程中表现出增强的活动。我们没能找到情绪之间的预测差异。结果表明，杏仁核有助于一系列情绪的任务无关的知觉处理。我们解释腹内侧前额叶和躯体感觉皮层激活的证据表明，这些地区有助于外显情绪处理，通过连接情绪感知与表征的躯体状态以前产生的情绪。(C)2003年爱思唯尔公司All rights reserved.
Whether common or distinct neural systems underpin perception of different emotions and the degree to which these systems are automatically engaged during emotional perception are unresolved. We performed an event-related fMRI experiment in which subjects viewed morphed emotional faces displaying low or high intensities of disgust, fear, happiness, or sadness under two task conditions. The amygdala and fusiform cortex responded to high-intensity expressions of all emotions, independent of task. Right superior temporal sulcus showed an additive effect of the emotion-directed task and high-intensity emotion. Ventromedial prefrontal and somatosensory cortices, regions implicated in providing representations of somatic states, showed enhanced activity during explicit emotional judgments. We failed to find predicted differences between emotions. The results suggest that amygdala contributes to task-independent perceptual processing of a range of emotions. We interpret ventromedial prefrontal and somatosensory cortex activations as evidence that these regions contribute to explicit emotion processing through linking emotion perception with representations of somatic states previously engendered by emotions. (C) 2003 Elsevier Inc. All rights reserved.