Effects of Human Race and Face Inversion on the N170 A Cross-Race Study
Effects of Human Race and Face Inversion on the N170 A Cross-Race Study
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DOI：
10.1027/0269-8803.22.4.157
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发表时间：
2008-01-01
影响因子：
1.3
通讯作者：
Stoerig, Petra
中科院分区：
文献类型：
--
作者：
Gajewski, Patrick D.;Schlegel, Katrin;Stoerig, Petra
为了了解N170是否会受到同种族和其他种族面孔的方向反转的不同影响，我们记录了高加索人和当地居民亚洲受试者观看非洲人，亚洲人和高加索人面孔的直立和倒置正面照片的事件相关脑电位（ERP）。结果表明，在两个受试者组中，对于倒置的白人面孔，达到峰值的时间显著延迟。在高加索人中，同种族的N170峰值晚于其他种族的N170峰值，但在亚洲参与者中，高加索人和亚洲人之间没有显着差异。因此，倒位似乎主要影响熟悉种族面孔的N170潜伏期。这一结论得到了直立和倒置白人面孔诱发的N170潜伏期与亚洲参与者在欧洲生活的时间之间的正相关性的支持。因此，N170的种族和反转依赖的延迟增加可能表示强调熟悉种族面孔的个性化的处理受损，并在熟悉过程中发展。
To learn whether the N170 would be differentially affected by orientation inversion of same-and other-race faces, we recorded event-related brain potentials (ERPs) in Caucasian and locally resident Asian subjects viewing upright and upside-down front-view photographs of African, Asian, and Caucasian faces. Results show that the time-to-peak was significantly delayed for inverted Caucasian faces in both subject groups. The same-race N170 peaked later than either other-race N170 in the Caucasian, but showed no significant difference between Caucasian and Asian faces in the Asian participants. Inversion, therefore, appears to affect the N170's latency predominantly for faces of familiar races. This conclusion gains support from a positive correlation between the latency of the N170 evoked by both upright and inverted Caucasian faces and the amount of time that the Asian participants had lived in Europe. The N170's race- and inversion-dependent latency increase may, thus, express an impairment of processing that emphasizes individuation of familiar-race faces, and develops during familiarization.