Mind, Brain and Behavior Research Center, University of Granada, Spain.
Brain Res. 2013 Feb 4;1494:44-55. doi: 10.1016/j.brainres.2012.11.037. Epub 2012 Dec 7.
Faces contain certain cues that can be used to infer the intentions of other people and to formulate beliefs about them. The present study explored the extent to which the race of the partners and their emotional facial expressions influenced participants' decision-making in a Trust Game where race and emotional expression had no actual predictive value regarding the partners' reciprocation rate. Behaviourally, participants shared more money with happy than with angry partners. In two separate experiments, electrophysiological results showed an early interaction between race and emotion in the N170 potential and also in the subsequent P200, which suggests inter-dependent processing of those cues in a social context. Overall, our results indicate that racial and emotional cues exert both independent and also interacting effects in the processing of faces in an interpersonal context.
面部包含某些线索，可用于推断他人的意图，并形成对他们的信念。本研究探讨了在信任游戏中，参与者的决策在多大程度上受到合作伙伴的种族和情绪面部表情的影响，而种族和情绪表达在合作伙伴的互惠率方面没有实际的预测价值。行为上，参与者与快乐的合作伙伴分享的钱比与生气的合作伙伴多。在两个单独的实验中，电生理结果显示，在 N170 电位中和随后的 P200 中，种族和情绪之间存在早期相互作用，这表明在社交环境中对这些线索进行相互依赖的处理。总的来说，我们的结果表明，在人际环境中，种族和情绪线索既会产生独立的影响，也会产生相互作用的影响。
