Martin A, Haxby J V, Lalonde F M, Wiggs C L, Ungerleider L G
Laboratory of Psychology and Psychopathology, National Institute of Mental Health, Bethesda, MD 20892-1366, USA.
Science. 1995 Oct 6;270(5233):102-5. doi: 10.1126/science.270.5233.102.
The areas of the brain that mediate knowledge about objects were investigated by measuring changes in regional cerebral blood flow (rCBF) using positron emission tomography (PET). Subjects generated words denoting colors and actions associated with static, achromatic line drawings of objects in one experiment, and with the written names of objects in a second experiment. In both studies, generation of color words selectively activated a region in the ventral temporal lobe just anterior to the area involved in the perception of color, whereas generation of action words activated a region in the middle temporal gyrus just anterior to the area involved in the perception of motion. These data suggest that object knowledge is organized as a distributed system in which the attributes of an object are stored close to the regions of the cortex that mediate perception of those attributes.
通过正电子发射断层扫描（PET）测量局部脑血流量（rCBF）的变化，对大脑中调节物体认知的区域进行了研究。在一项实验中，受试者生成表示与静态、消色差物体线条图相关的颜色和动作的单词，在第二项实验中，受试者生成与物体书面名称相关的颜色和动作的单词。在这两项研究中，生成颜色单词选择性地激活了腹侧颞叶中一个位于颜色感知区域前方的区域，而生成动作单词则激活了颞中回中一个位于运动感知区域前方的区域。这些数据表明，物体知识作为一个分布式系统进行组织，其中物体的属性存储在介导这些属性感知的皮层区域附近。
