The role of the ventromedial prefrontal cortex in automatic formation of impression and reflected impression
The role of the ventromedial prefrontal cortex in automatic formation of impression and reflected impression
复制标题
DOI：
10.1002/hbm.24996
复制
发表时间：
2020-04-17
影响因子：
4.8
通讯作者：
Izuma, Keise
中科院分区：
文献类型：
--
作者：
Ito, Ayahito;Yoshida, Kazuki;Izuma, Keise
以前的神经影像学研究表明，腹内侧前额叶皮层（vmPFC）的活动反映了一个人对每个人的积极看法（印象）。在这里，我们调查的程度是否个人认为别人积极看待他们（反映的印象）同样跟踪活动的vmPFC通过使用功能磁共振成像和速配事件。我们还研究了vmPFC对他人面孔的反应活动是否会预测通过与他们直接互动形成的印象。这项任务包括三个阶段：速配前的功能磁共振成像，速配事件，以及速配后的功能磁共振成像（这里没有报道）。在速配前的功能磁共振成像中，每个参与者都被动地观察他们在随后的速配活动中遇到的其他人的面孔。在功能磁共振成像之后，他们对每张脸的印象和反射印象进行了评级。在速配活动中，参与者与在fMRI任务中出现的伴侣进行了3分钟的对话，并要求他们在活动结束时选择他们喜欢的伴侣。结果表明，印象和反射印象的价值都自动表示在vmPFC中。然而，印象完全介导的反射印象和vmPFC活动之间的联系。这些结果突出了反映评价和印象形成之间的密切联系，并提供了重要的见解，神经和心理模型的反映印象是如何在人脑中形成。
Previous neuroimaging studies demonstrated that ventromedial prefrontal cortex (vmPFC) activity reflects how much an individual positively views each person (impression). Here, we investigated whether the degree to which individuals think others positively view them (reflected impression) is similarly tracked by activity in the vmPFC by using fMRI and speed-dating events. We also examined whether activity of the vmPFC in response to the faces of others would predict the impression formed through direct interactions with them. The task consisted of three sessions: pre-speed-dating fMRI, speed-dating events, and post-speed-dating fMRI (not reported here). During the pre-speed-dating fMRI, each participant passively viewed the faces of others whom they would meet in the subsequent speed-dating events. After the fMRI, they rated the impression and reflected impression of each face. During the speed-dating events, the participants had 3-min conversations with partners whose faces were presented during the fMRI task, and they were asked to choose the partners whom they preferred at the end of the events. The results revealed that the value of both the impression and reflected impression were automatically represented in the vmPFC. However, the impression fully mediated the link between the reflected impression and vmPFC activity. These results highlight a close link between reflected appraisal and impression formation and provide important insights into neural and psychological models of how the reflected impression is formed in the human brain.