The Dorsomedial Prefrontal Cortex Plays a Causal Role in Integrating Social Impressions from Faces and Verbal Descriptions
The Dorsomedial Prefrontal Cortex Plays a Causal Role in Integrating Social Impressions from Faces and Verbal Descriptions
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DOI：
10.1093/cercor/bhu186
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发表时间：
2016-01-01
期刊：
影响因子：
3.7
通讯作者：
Cattaneo, Zaira
中科院分区：
文献类型：
--
作者：
Ferrari, Chiara;Lega, Carlotta;Cattaneo, Zaira
一些神经影像学研究指出，背内侧前额叶皮层（dmPFC）在社会相关印象的形成中起着关键作用。在3个不同的实验中，参与者被要求根据对他们社会行为的文本描述，形成对其他个体的社会相关印象，并决定是否只有一张脸，一个特质形容词（例如，“自私”），或者一张带有特征形容词的脸与他们形成的印象一致或不一致。在决定目标刺激是否与他们之前形成的印象相匹配之前，参与者在dmPFC，额下回（IFG，也与社会印象形成有关）或对照部位（顶点）接受经颅磁刺激（TMS）。3个实验的结果一致表明，干扰dmPFC活动显着延迟参与者的反应是否一个面孔形容词对是一致的，他们已经形成的印象。没有观察到TMS的影响后，IFG的刺激，或当评价的面孔或特质形容词单独提出。我们的研究结果严重扩展了以前的神经影像学证据表明，在创建连贯的印象的基础上整合的脸和口头描述的社会行为的dmPFC的因果关系的作用。
Several neuroimaging studies point to a key role of the dorsomedial prefrontal cortex (dmPFC) in the formation of socially relevant impressions. In 3 different experiments, participants were required to form socially relevant impressions about other individuals on the basis of text descriptions of their social behaviors, and to decide whether a face alone, a trait adjective (e.g., "selfish"), or a face presented with a trait adjective was consistent or inconsistent with the impression they had formed. Before deciding whether the target stimulus matched the impression they had previously formed, participants received transcranial magnetic stimulation (TMS) over the dmPFC, the inferior frontal gyrus (IFG, also implicated in social impression formation), or over a control site (vertex). Results from the 3 experiments converged in showing that interfering with dmPFC activity significantly delayed participants in responding whether a face-adjective pair was consistent with the impression they had formed. No effects of TMS were observed following stimulation of the IFG or when evaluations had to be made on faces or trait adjectives presented alone. Our findings critically extend previous neuroimaging evidence by indicating a causal role of the dmPFC in creating coherent impressions based on the integration of face and verbal description of social behaviors.