人类纹外皮层中的人脸识别。

Face recognition in human extrastriate cortex.

Allison T, Ginter H, McCarthy G, Nobre A C, Puce A, Luby M, Spencer D D

Neuropsychology Laboratory, Veterans Administration Medical Center, West Haven, Connecticut 06510.

J Neurophysiol. 1994 Feb;71(2):821-5. doi: 10.1152/jn.1994.71.2.821.

Abstract

Twenty-four patients with electrodes chronically implanted on the surface of extrastriate visual cortex viewed faces, equiluminant scrambled faces, cars, scrambled cars, and butterflies. 2. A surface-negative potential, N200, was evoked by faces but not by the other categories of stimuli. N200 was recorded only from small regions of the left and right fusiform and inferior temporal gyri. Electrical stimulation of the same region frequently produced a temporary inability to name familiar faces. 3. The results suggest that discrete regions of inferior extrastriate visual cortex, varying in location between individuals, are specialized for the recognition of faces. These "face modules" appear to be intercalated among other functionally specific small regions.

摘要

24名患者的电极长期植入纹外视觉皮层表面，他们观看了面孔、等亮度的杂乱面孔、汽车、杂乱汽车和蝴蝶。2. 面孔能诱发一种表面负电位N200，而其他类别刺激则不能。N200仅在左右梭状回和颞下回的小区域记录到。对同一区域进行电刺激常常会导致暂时无法说出熟悉面孔的名字。3. 结果表明，纹外视觉皮层下部的离散区域在个体间位置不同，专门用于面孔识别。这些“面孔模块”似乎插在其他功能特异的小区域之间。