A face feature space in the macaque temporal lobe.
A face feature space in the macaque temporal lobe.
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DOI：
10.1038/nn.2363
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发表时间：
2009-09
影响因子：
25
通讯作者：
Livingstone, Margaret S.
中科院分区：
文献类型：
--
作者：
Freiwald, Winrich A.;Tsao, Doris Y.;Livingstone, Margaret S.
灵长类动物毫不费力地识别人脸的能力被归因于专门的面部区域的存在。其中一个区域，猕猴的面部中央区域，几乎完全由对面部有选择性的细胞组成，但这些细胞分析面部的原理尚不清楚。我们发现，中间的脸补丁神经元检测和区分面部使用的策略，这是基于部分和整体。细胞检测到不同的面部星座。此外，细胞被调整到面部特征的几何形状。调谐通常是斜坡形的，特征幅度与发射率一一对应。调谐幅度取决于存在的一个整体，直立的脸和功能进行解释，根据他们的位置在一个整体，直立的脸。因此，中间面部块中的单元对专门用于整个直立面部的面部空间的轴进行编码。
The ability of primates to effortlessly recognize faces has been attributed to the existence of specialized face areas. One such area, the macaque middle face patch, consists almost entirely of cells that are selective for faces, but the principles by which these cells analyze faces are unknown. We found that middle face patch neurons detect and differentiate faces using a strategy that is both part based and holistic. Cells detected distinct constellations of face parts. Furthermore, cells were tuned to the geometry of facial features. Tuning was most often ramp-shaped, with a one-to-one mapping of feature magnitude to firing rate. Tuning amplitude depended on the presence of a whole, upright face and features were interpreted according to their position in a whole, upright face. Thus, cells in the middle face patch encode axes of a face space specialized for whole, upright faces.
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