The fusiform face area subserves face perception, not generic within-category identification
The fusiform face area subserves face perception, not generic within-category identification
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DOI：
10.1038/nn1224
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发表时间：
2004-05-01
影响因子：
25
通讯作者：
Kanwisher, N
中科院分区：
文献类型：
--
作者：
Grill-Spector, K;Knouf, N;Kanwisher, N
梭状面孔区（FFA）是人类纹外皮层中的一个面孔选择区域，其功能一直是一个有争议的问题。在这里，我们测量了FFA活动测量功能磁共振成像（fMRI）和知觉任务中的行为结果之间的相关性，以确定FFA在检测和类别内识别人脸和物体中的作用。我们的数据表明，FFA激活与检测人脸的存在和识别特定人脸相关。然而，对于大多数非面部物体（包括汽车专家看到的汽车），类别内识别表现与腹侧枕颞叶皮层其他区域的激活相关，而不是FFA。这些结果表明，FFA参与人脸的检测和识别，但它很少参与非人脸对象（包括专业知识的对象）的类别内识别。
The function of the fusiform face area (FFA), a face-selective region in human extrastriate cortex, is a matter of active debate. Here we measured the correlation between FFA activity measured by functional magnetic resonance imaging (fMRI) and behavioral outcomes in perceptual tasks to determine the role of the FFA in the detection and within-category identification of faces and objects. Our data show that FFA activation is correlated on a trial-by-trial basis with both detecting the presence of faces and identifying specific faces. However, for most non-face objects (including cars seen by car experts), within-category identification performance was correlated with activation in other regions of the ventral occipitotemporal cortex, not the FFA. These results indicate that the FFA is involved in both detection and identification of faces, but that it has little involvement in within-category identification of non-face objects (including objects of expertise).