The voice of emotion: an FMRI study of neural responses to angry and happy vocal expressions
The voice of emotion: an FMRI study of neural responses to angry and happy vocal expressions
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DOI：
10.1093/scan/nsl027
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发表时间：
2006-12-01
影响因子：
4.2
通讯作者：
Davidson, Richard J.
中科院分区：
文献类型：
--
作者：
Johnstone, Tom;van Reekum, Carien M.;Davidson, Richard J.
人的声音是社会和情感交流的主要载体之一。然而，人们对支持识别不同声音表达的情绪的神经回路知之甚少。我们进行了一项功能磁共振成像研究，以检查大脑对愤怒和快乐的声音表达的反应，并测试特定的大脑区域是否在处理一种情绪时表现出比另一种情绪更优先的参与。我们还测试了同时呈现相同或不同情绪的面部表情会在多大程度上增强大脑的反应，以及这种反应在多大程度上取决于对声音表达的关注。研究人员对40名健康的人进行扫描，同时让他们听愤怒或快乐的声音表达，同时观看一致或不一致的面部表情。快乐的声音比愤怒的声音在右侧中颞回前后、左侧后颞回和右侧额下回的激活明显更多。此外，对于左侧MTG区域，快乐的声音只有在与快乐的面孔配对时才与更高的激活有关。左脑岛、左杏仁核和海马体以及吻侧前扣带皮层的激活表现出选择性地响应声音刺激的效果。我们的研究结果确定了一个涉及声音情感处理的区域网络，并表明声音表达快乐的一个特别突出的作用。
The human voice is one of the principal conveyers of social and affective communication. Yet relatively little is known about the neural circuitry that supports the recognition of different vocally expressed emotions. We conducted an FMRI study to examine the brain responses to vocal expressions of anger and happiness, and to test whether specific brain regions showed preferential engagement in the processing of one emotion over the other. We also tested the extent to which simultaneously presented facial expressions of the same or different emotions would enhance brain responses, and to what degree such responses depend on attention towards the vocal expression. Forty healthy individuals were scanned while listening to vocal expressions of anger or happiness, while at the same time watching congruent or discrepant facial expressions. Happy voices elicited significantly more activation than angry voices in right anterior and posterior middle temporal gyrus (MTG), left posterior MTG and right inferior frontal gyrus. Furthermore, for the left MTG region, happy voices were related to higher activation only when paired with happy faces. Activation in the left insula, left amygdala and hippocampus, and rostral anterior cingulate cortex showed an effect of selectively attending to the vocal stimuli. Our results identify a network of regions implicated in the processing of vocal emotion, and suggest a particularly salient role for vocal expressions of happiness.