Cloutier Jasmin, Gyurovski Ivo
Dept. of Psychology, University of Chicago, USA.
Dept. of Psychology, University of Chicago, USA.
Neuroimage. 2014 Oct 15;100:535-43. doi: 10.1016/j.neuroimage.2014.06.024. Epub 2014 Jun 14.
The current study investigated ventromedial prefrontal cortex (VMPFC) activity during impression formation of individuals varying on distinct dimensions of social status. In a block-design functional magnetic resonance imaging (fMRI) experiment, participants were presented with photographs of faces paired with a colored background indicating their lower, same, or higher financial status, or lower, same, or higher moral status. Participants were asked to form an impression of the targets, but were not instructed to explicitly evaluate them based on social status. Building on previous findings (Cloutier, Ambady, Meagher, & Gabrieli, 2012), a region of interest analysis revealed the interaction of status dimension and level in VMPFC, finding not only preferential response to targets with higher compared to lower moral status as previously demonstrated, but also greater response to targets with lower compared to higher financial status. The implications of these results are discussed with an emphasis towards better understanding the impact of social status on social cognition and uncovering the neural substrates of person evaluation.
当前的研究调查了在对社会地位不同维度存在差异的个体进行印象形成过程中腹内侧前额叶皮层(VMPFC)的活动。在一项区组设计功能磁共振成像(fMRI)实验中,向参与者展示面部照片,并搭配表明其较低、相同或较高经济地位,或较低、相同或较高道德地位的彩色背景。要求参与者对目标形成印象,但未被指示基于社会地位对他们进行明确评价。基于先前的研究结果(Cloutier、Ambady、Meagher和Gabrieli,2012年),一项感兴趣区域分析揭示了VMPFC中地位维度与水平的相互作用,发现不仅如先前所示对道德地位较高的目标有优先反应,而且对经济地位较低的目标比对经济地位较高的目标有更大反应。讨论了这些结果的意义,重点是更好地理解社会地位对社会认知的影响以及揭示人物评价的神经基础。