Kaplan Jonas T, Freedman Joshua, Iacoboni Marco
Ahamnson-Lovelace Brain Mapping Center, 660 Charles Young Drive South, David Geffen School of Medicine at UCLA, University of California, Los Angeles, CA 90095, USA.
Neuropsychologia. 2007 Jan 7;45(1):55-64. doi: 10.1016/j.neuropsychologia.2006.04.024. Epub 2006 Jun 9.
We investigated how political party affiliation and political attitudes modulate neural activity while viewing faces of presidential candidates. Ten registered Democrats and 10 registered Republicans were scanned in an event-related functional MRI paradigm while viewing pictures of the faces of George Bush, John Kerry, and Ralph Nader during the 2004 United States presidential campaign. We found that compared with viewing one's own candidate, viewing the candidate from the opposing political party produced signal changes in cognitive control circuitry in the dorsolateral prefrontal cortex and anterior cingulate, as well as in emotional regions such as the insula and anterior temporal poles. BOLD signal in these regions correlated with subjects' self-reported ratings of how they felt emotionally about the candidates. These data suggest that brain activity when viewing a politician's face is affected by the political allegiance of the viewer and that people regulate their emotional reactions to opposing candidates by activating cognitive control networks.
我们研究了在观看总统候选人面部时，政党归属和政治态度如何调节神经活动。在2004年美国总统竞选期间，10名登记在册的民主党人和10名登记在册的共和党人在一个与事件相关的功能性磁共振成像范式中接受扫描，同时观看乔治·布什、约翰·克里和拉尔夫·纳德的面部照片。我们发现，与观看自己党派的候选人相比，观看对立党派的候选人会在背外侧前额叶皮层和前扣带回的认知控制回路以及诸如脑岛和颞极前部等情感区域产生信号变化。这些区域的血氧水平依赖（BOLD）信号与受试者对候选人的情感自我报告评分相关。这些数据表明，观看政治家面部时的大脑活动会受到观看者政治忠诚的影响，并且人们通过激活认知控制网络来调节对对立候选人的情感反应。
