面孔认知中的性别差异

Gender Difference in Face Recognition

使用事件相关电位的方法,以不同性别的正倒立面孔照片为刺激,研究正倒立面孔的判断作业下面孔认知的性别差异。结果显示,枕颞区均观察到明显的N170波形,且呈现脑右半球优势。不同性别的图片刺激并未发现对N170波形有显著影响,而不同性别被试在面孔识别时的N170幅值和潜伏期均有显著差异,且男性在观察到同性和异性时的潜伏期也有明显差异,女性无此特点。

The method of event-related potentials （ERP） was used to study the gender difference in face recogni- tion. The stimuli in the experiment were 10 upright and 10 inverted face photos. The subjects, half female and half male, were asked to judge whether the face was upright or inverted. The results showed that the N170 wave forms were observed in the occipito-temporal regions and they were found exhibiting brain＇s right hemispheric dominance. The stimuli of different gender photos were noticed to have no significant impact on the N170 wave forms, but there were significant differentce in the amplitude and latency period of N170 between different gender participants. Moreo- ver, there was marked difference in the latency period of the male participants watching the same gender face and dif- ferent gender face. Similar results were not found in the ERP＇s latency period of female participants.