Caldara Roberto, Rossion Bruno, Bovet Pierre, Hauert Claude-Alain
Faculté de Psychologie et des Sciences de l'Education, University of Geneva, 40 boulevard du Pont d'Arve, 1211 Geneva 4, Switzerland.
Neuroreport. 2004 Apr 9;15(5):905-10. doi: 10.1097/00001756-200404090-00034.
Other-race faces are less accurately recognized than same race faces but classified faster by race. Using event-related potentials (ERPs), we captured the brain temporal dynamics of face classification by race processing performed by 12 Caucasian participants. As expected, participants were faster to classify by race Asian than Caucasian faces. ERPs results identified the occurrence of the other-race face classification advantage at around 240 ms, in a stage related to the processing of visual information at the semantic level. The elaboration of individual face structural representation, reflected in the N170 face-sensitive component, was insufficient to achieve this process. Altogether, these findings suggest that the lesser experience of other-race faces engender fewer semantic representations, which in turn accelerate their speed of processing.
识别其他种族面孔的准确性低于识别同种族面孔，但按种族分类的速度更快。我们使用事件相关电位（ERP），捕捉了12名白种人参与者进行种族处理对面孔进行分类时大脑的时间动态。不出所料，参与者按种族对亚洲面孔进行分类的速度比对高加索面孔的分类速度更快。ERP结果表明，在与语义层面视觉信息处理相关的阶段，大约在240毫秒时出现了其他种族面孔分类优势。在N170面孔敏感成分中反映出的个体面孔结构表征的细化不足以实现这一过程。总之，这些发现表明，对其他种族面孔的较少体验产生的语义表征较少，这反过来又加快了它们的处理速度。
