A cortical area that responds specifically to optic flow, revealed by fMRI
A cortical area that responds specifically to optic flow, revealed by fMRI
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DOI：
10.1038/81860
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发表时间：
2000-12-01
影响因子：
25
通讯作者：
Burr, DC
中科院分区：
文献类型：
--
作者：
Morrone, MC;Tosetti, M;Burr, DC
视网膜上不断变化的光流提供了关于前进方向和环境三维结构的信息。在这里，我们使用功能性磁共振成像（fMRI），以证明在人类大脑皮层的区域选择性地响应的组成部分的光流，如圆形和径向运动。该区域位于通常称为V5/MT复合体的区域内，但与该区域响应翻译的部分不同。V5/MT复合体的这两个区域的功能特性也是不同的;对光流的响应仅通过改变流刺激获得，而对平移的响应发生在暴露于连续运动期间。
The continuously changing optic flow on the retina provides information about direction of heading and about the three-dimensional structure of the environment. Here we use functional magnetic resonance Imaging (fMRI) to demonstrate that an area in human cortex responds selectively to components of optic flow, such as circular and radial motion. This area is within the region commonly referrred to as V5/MT complex, but is distinct from the part of this region that responds to translation. The functional properties of these two areas of the V5/MT complex are also different; the response to optic flow was obtained only with changing flow stimuli, whereas response to translation occurred during exposure to continuous motion.