A common neural basis for receptive and expressive communication of pleasant facial affect
A common neural basis for receptive and expressive communication of pleasant facial affect
复制标题
DOI：
10.1016/j.neuroimage.2005.01.057
复制
发表时间：
2005-06-01
期刊：
影响因子：
5.7
通讯作者：
Ceballos-Baumann, AO
中科院分区：
文献类型：
--
作者：
Hennenlotter, A;Schroeder, U;Ceballos-Baumann, AO
越来越多的证据表明，面部情感的视觉表征与其运动表征密切相关。为了研究愉快的面部情感的感知是否涉及与其产生相关的神经回路，我们进行了一项功能磁共振成像实验，其中受试者微笑，并观察在每个图像体积的获取之间的无扫描时间间隔内描绘其他人微笑的电影。在观察和执行微笑表情的大脑激活之间的重叠位于右前运动皮层和额下回，右顶骨盖（SII）和左前额叶的盖部。微笑表情的观察进一步产生信号增加后上级颞沟（STS），梭状回和腹侧杏仁核。结果表明，感知和表达愉快的面部情感共享一个共同的神经基础，在有关地区的运动以及躯体和边缘感觉处理。与服务于面部表情特征的视觉分析的颞区相一致，将观察到的表情映射到与这些表情的产生及其躯体感觉后果相关的神经回路上，可以提供对如果在观察者中产生的表情的感觉的描述。这种机制被认为是重要的移情理解他人的感受。(c)2005年爱思唯尔公司All rights reserved.
There is accumulating evidence suggesting that the visual representation of facial affect is closely linked to its motor representation. To examine whether perception of pleasant facial affect involves neural circuitries associated with its production, we performed an fMRI experiment with 'compressed image acquisition' where subjects smiled and observed movies depicting other people smiling within scan-free time intervals between the acquisition of each image volume. Overlaps between the brain activation during observation and execution of smile expressions were located in the right premotor cortex and pars opercularis of the inferior frontal gyrus, right parietal operculum (SII) and left anterior insula. Observation of smile expressions further yielded signal increases within the posterior superior temporal sulcus (STS), fusiform gyrus and ventral amygdala. The results show that perceiving and expressing pleasant facial affect share a common neural basis in areas concerned with motor as well as somato- and limbic-sensory processing. In concert with temporal regions serving the visual analysis of facial expressive features, a mapping of the observed expressions onto neural circuitries associated with the production of these expressions and its somatosensory consequences could provide a description of what the expression would feel like if produced in the observer. Such a mechanism is suggested to be important for empathic understanding of others' feelings. (c) 2005 Elsevier Inc. All rights reserved.