Laboratoire ICONES (EA4699), Normandie Université, U.F.R. des Sciences de l'Homme et de la Société, 76821 Mont-Saint-Aignan Cedex, France.
Brain Cogn. 2013 Apr;81(3):360-9. doi: 10.1016/j.bandc.2012.12.004. Epub 2013 Jan 29.
Recent ERP research has indicated that the processing of faces of other races (OR) and same race (SR) as the perceiver differs at the perceptual level, more precisely for the N170 component. The purpose of the present study was to continue the investigation of the race-of-face processing across multiple orientations. Event-related brain potentials (ERPs) and performance were recorded when Caucasian participants were required to categorize by race Caucasian and African faces presented in eight different angles of orientation. Three main observations were made: (1) the face-sensitive N170 is modulated by the race of faces, being larger in response to OR compared to SR faces; (2) face rotation affected this component in the same pattern for both racial groups; (3) the N170-ORE progressively disappeared as the faces moved away from their canonical orientation at the right hemisphere only. Thus, the current findings suggest that configural/holisitic information is extracted from faces of both racial groups, but that upright OR faces require increased demands.
最近的 ERP 研究表明，在知觉水平上，对其他种族（OR）和观察者自身种族（SR）的面孔的处理存在差异，更具体地说是在 N170 成分上。本研究的目的是继续研究跨多个方向的面孔种族加工。当要求白种参与者根据种族将白种和非洲面孔归类为八个不同的方位时，记录了事件相关脑电位（ERPs）和表现。主要有三个观察结果：（1）面孔敏感的 N170 受到面孔种族的调节，与 SR 面孔相比，对 OR 面孔的反应更大；（2）面孔旋转以相同的模式影响这两个种族群体的成分；（3）N170-ORE 随着面孔从它们在右半球的标准方位离开而逐渐消失。因此，目前的研究结果表明，来自两个种族群体的面孔都提取了整体/整体信息，但直立的 OR 面孔需要更高的要求。
