Kourtzi Zoe, Bülthoff Heinrich H, Erb Michael, Grodd Wolfgang
Max Planck Institute for Biological Cybernetics, Spemannstrasse 38, 72076 Tuebingen, Germany.
Nat Neurosci. 2002 Jan;5(1):17-8. doi: 10.1038/nn780.
The perception of moving objects and our successful interaction with them entail that the visual system integrates shape and motion information about objects. However, neuroimaging studies have implicated different human brain regions in the analysis of visual motion (medial temporal cortex; MT/MST) and shape (lateral occipital complex; LOC), consistent with traditional approaches in visual processing that attribute shape and motion processing to anatomically and functionally separable neural mechanisms. Here we demonstrate object-selective fMRI responses (higher responses for intact than for scrambled images of objects) in MT/MST, and especially in a ventral subregion of MT/MST, suggesting that human brain regions involved mainly in the processing of visual motion are also engaged in the analysis of object shape.
对移动物体的感知以及我们与它们的成功互动意味着视觉系统整合了有关物体的形状和运动信息。然而，神经影像学研究表明，在视觉运动分析（内侧颞叶皮层；MT/MST）和形状分析（外侧枕叶复合体；LOC）中，涉及不同的人类脑区，这与视觉处理中的传统方法一致，即把形状和运动处理归因于解剖学和功能上可分离的神经机制。在这里，我们展示了MT/MST区域，尤其是MT/MST腹侧子区域中的物体选择性功能磁共振成像反应（对完整物体图像的反应高于对打乱的物体图像的反应），这表明主要参与视觉运动处理的人类脑区也参与了物体形状的分析。
