FORM-CUE INVARIANT MOTION PROCESSING IN PRIMATE VISUAL-CORTEX
FORM-CUE INVARIANT MOTION PROCESSING IN PRIMATE VISUAL-CORTEX
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DOI：
10.1126/science.1546317
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发表时间：
1992-02-28
期刊：
影响因子：
56.9
通讯作者：
ALBRIGHT, TD
中科院分区：
文献类型：
--
作者：
ALBRIGHT, TD
物体移动的方向和速度通常与使其可见的多种物理线索（例如亮度和纹理）无关。为了达到目的，人类对视觉运动的感知在很大程度上避开了图像形式线索的多样性；运动方向和速度的感知（除了少数例外）并不依赖于物体的物理特性。灵长类动物大脑皮层的中颞叶视觉区包含许多神经元，这些神经元对特定方向的运动做出选择性反应，是运动感知的神经基质的组成部分。当受到以三种不同形式线索之一为特征的运动模式刺激时，许多中颞叶神经元表现出类似的方向调谐。这种对图形线索特征的敏感性的缺乏可能允许具有广泛物理线索的物体运动的统一感知。
The direction and rate at which an object moves are normally not correlated with the manifold physical cues (for example, brightness and texture) that enable it to be seen. As befits its goals, human perception of visual motion largely evades this diversity of cues for image form; direction and rate of motion are perceived (with few exceptions) in a fashion that does not depend on the physical characteristics of the object. The middle temporal visual area of the primate cerebral cortex contains many neurons that respond selectively to motion in a particular direction and is an integral part of the neural substrate for perception of motion. When stimulated with moving patterns characterized by one of three very diverse cues for form, many middle temporal neurons exhibited similar directional tuning. This lack of sensitivity for figural cue characteristics may allow the uniform perception of motion of objects having a broad spectrum of physical cues.