Electrophysiological studies of human face perception. II: Response properties of face-specific potentials generated in occipitotemporal cortex
Electrophysiological studies of human face perception. II: Response properties of face-specific potentials generated in occipitotemporal cortex
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DOI：
10.1093/cercor/9.5.431
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发表时间：
1999-07-01
期刊：
影响因子：
3.7
通讯作者：
Allison, T
中科院分区：
文献类型：
--
作者：
McCarthy, G;Puce, A;Allison, T
在前面的文章中描述了N200和其他面孔特异性事件相关电位（ERPs）的定位和基本反应特性。在本文中，N200和相关的ERPs的面孔和其他图像的知觉特征的反应性进行了评估。N200振幅没有实质性的变化，无论是诱发彩色或灰度的脸;正常，模糊或线条画的脸;或不同大小的脸。人的手诱发小N200在面部特定的网站，但诱发手特定的ERP在其他网站。猫和狗的面孔引起的N200是人脸的73%。半球刺激表明，右半球更擅长处理直立面孔的信息并将其转移到左半球，而左半球更擅长处理倒置面孔的信息并将其转移到右半球。N200的振幅最大的全脸，逐步减少眼睛，面部轮廓，嘴唇和鼻子孤立地看到。面部特异性N200位点外侧的区域对面部内部部位的反应比对面部的反应更强烈，腹侧枕颞皮质的一些位点具有面部部位特异性。眼睛转向或关闭的脸诱发更大的N200比眼睛向前的脸诱发的。眼位和头位的联合作用对N200的波幅和潜伏期的影响主要在右半球，而对左半球无影响。完整和四分之三的意见，面对诱发较大的N200比侧面的意见。结果进行了讨论，在人类和猴子的单细胞记录的行为研究。
In the previous paper the locations and basic response properties of N200 and other face-specific event related potentials (ERPs) were described. In this paper responsiveness of N200 and related ERPs to the perceptual features of faces and other images was assessed. N200 amplitude did not vary substantially, whether evoked by colored or grayscale faces; normal, blurred or line drawing faces; or by faces of different sizes. Human hands evoked small N200s at face-specific sites, but evoked hand-specific ERPs at other sites. Cat and dog faces evoked N200s that were 73% as large as to human faces. Hemifield stimulation demonstrated that the right hemisphere is better at processing information about upright faces and transferring it to the left hemisphere, whereas the left hemisphere is better at processing information about inverted faces and transferring it to the right hemisphere. N200 amplitude was largest to full faces and decreased progressively to eyes, face contours, lips and noses viewed in isolation. A region just lateral to face-specific N200 sites was more responsive to internal face parts than to faces, and some sites in ventral occipitotemporal cortex were face-part-specific. Faces with eyes averted or closed evoked larger N200s than those evoked by faces with eyes forward. N200 amplitude and latency were affected by the joint effects of eye and head position in the right hut not in the left hemisphere. Full and three quarter views of faces evoked larger N200s than did profile views. The results are discussed in relation to behavioral studies in humans and single-cell recordings in monkeys.