【摘要】 本研究记录了16名被试在完成有整体结构变化和局部特征变化的面孔/房屋图片的一致性判断时的脑内时程变化,以期对面孔识别的特异性本质进行探讨。结果显示,N170波幅和潜伏期的刺激类型主效应显著;面孔/房屋所诱发的N170成分在波幅和潜伏期上均不存在加工方式上的显著差异。晚期成分(300～700ms)上也得到类似的结果。这表明:面孔与房屋(非面孔)的加工在早期和晚期成分上都有差异性,体现出面孔的加工在早期视觉刺激的加工和晚期识别的加工上都具有特异性;晚期识别加工的脑电结果不支持"面孔识别是整体的,结构的,而非面孔客体的识别是局部的,基于特征的"加工观点。更多还原

【Abstract】 The present study employed the event-related brain potentials to record time courses when 16 normal young participants made consistency judgment to face /house stimuli with structural/partial changes.The aim is to reveal the nature of specificity of face recognition.The results showed N170 amplitude and latency had a significant main effect at stimulus type.Compared with the non-face stimuli,faces evoked a higher amplitude and shorter latency of N170;there wasn’t a significant difference in processing at amplitude and latency of N170 component between face /non-face stimuli.Late components in the time window from 300-700 msec also had similar results.These results indicated the processing of faces and houses(non-face) were different in early and late components,reflecting the specificity of face recognition in early and late time windows.The late ERP components didn’t support that the face processing was whole and structural and non-face object processing was local,part-based.更多还原