Neural time course and brain sources of facial attractiveness vs. trustworthiness judgment
Neural time course and brain sources of facial attractiveness vs. trustworthiness judgment
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DOI：
10.3758/s13415-018-0634-0
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发表时间：
2018-12-01
影响因子：
2.9
通讯作者：
Beltran, David
中科院分区：
文献类型：
--
作者：
Calvo, Manuel G.;Gutierrez-Garcia, Aida;Beltran, David
先前的研究表明，人们对一张脸的判断越有吸引力（或不那么有吸引力），这个人就越被认为是值得信赖的，并且在面部吸引力和可信度评估过程中，一些常见的神经网络被招募。解释吸引力和可信度之间的关系（例如，个人可信度的感知是否取决于面部吸引力的感知），我们研究了他们的相对神经处理时间过程。事件相关电位（ERP）的范例，与头皮神经活动的脑源的本地化。在吸引力判断、可信度判断或控制（无明确的社会判断）任务中，呈现具有中性、愤怒、快乐或惊讶表情的面部刺激。情绪面部表情处理发生早（N170和EPN，150-290毫秒后刺激开始）比吸引力和可信度处理（P3 b，400-700毫秒）。重要的是，右中央ERP（C2，C4，C6）的差异，反映是（有吸引力的或值得信赖的）和没有（没有吸引力的或不值得信赖的）的决定之间的歧视发生至少400毫秒前的吸引力比值得信赖，在LRP运动准备的差异。神经源分析表明，面部处理大脑网络（例如，LG、FG和IPL（延伸到pSTS）也是右侧的，参与了辨别时程差异。这表明，吸引力的印象之前，并可能引发可信度的推断和神经时程差异反映真正的面部编码过程。
Prior research has shown that the more (or less) attractive a face is judged, the more (or less) trustworthy the person is deemed and that some common neural networks are recruited during facial attractiveness and trustworthiness evaluation. To interpret the relationship between attractiveness and trustworthiness (e.g., whether perception of personal trustworthiness may depend on perception of facial attractiveness), we investigated their relative neural processing time course. An event-related potential (ERP) paradigm was used, with localization of brain sources of the scalp neural activity. Face stimuli with a neutral, angry, happy, or surprised expression were presented in an attractiveness judgment, a trustworthiness judgment, or a control (no explicit social judgment) task. Emotional facial expression processing occurred earlier (N170 and EPN, 150-290 ms post-stimulus onset) than attractiveness and trustworthiness processing (P3b, 400-700 ms). Importantly, right-central ERP (C2, C4, C6) differences reflecting discrimination between yes (attractive or trustworthy) and no (unattractive or untrustworthy) decisions occurred at least 400 ms earlier for attractiveness than for trustworthiness, in the absence of LRP motor preparation differences. Neural source analysis indicated that facial processing brain networks (e.g., LG, FG, and IPLextending to pSTS), also right-lateralized, were involved in the discrimination time course differences. This suggests that attractiveness impressions precede and might prime trustworthiness inferences and that the neural time course differences reflect truly facial encoding processes.