Haxby J V, Gobbini M I, Furey M L, Ishai A, Schouten J L, Pietrini P
Laboratory of Brain and Cognition, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA.
Science. 2001 Sep 28;293(5539):2425-30. doi: 10.1126/science.1063736.
The functional architecture of the object vision pathway in the human brain was investigated using functional magnetic resonance imaging to measure patterns of response in ventral temporal cortex while subjects viewed faces, cats, five categories of man-made objects, and nonsense pictures. A distinct pattern of response was found for each stimulus category. The distinctiveness of the response to a given category was not due simply to the regions that responded maximally to that category, because the category being viewed also could be identified on the basis of the pattern of response when those regions were excluded from the analysis. Patterns of response that discriminated among all categories were found even within cortical regions that responded maximally to only one category. These results indicate that the representations of faces and objects in ventral temporal cortex are widely distributed and overlapping.
利用功能磁共振成像技术，在受试者观看面部、猫、五类人造物体和无意义图片时，测量腹侧颞叶皮质的反应模式，以此研究人类大脑中物体视觉通路的功能结构。每种刺激类别都发现了独特的反应模式。对给定类别的反应独特性并非仅仅归因于对该类别反应最强的区域，因为当将这些区域排除在分析之外时，根据反应模式仍可识别所观看的类别。即使在仅对一类物体反应最强的皮质区域内，也发现了能区分所有类别的反应模式。这些结果表明，腹侧颞叶皮质中面部和物体的表征广泛分布且相互重叠。
