Using visual direction in three-dimensional motion perception
Using visual direction in three-dimensional motion perception
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DOI：
10.1038/nn1389
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发表时间：
2005-02-01
影响因子：
25
通讯作者：
Drga, VF
中科院分区：
文献类型：
--
作者：
Harris, JM;Drga, VF
眼睛接收到的世界视图略有不同，它们的图像之间的差异（双眼视差）被用来看到深度。几位作者提出了大脑如何利用这些信息进行三维（3D）运动感知，但在这里我们考虑一个更简单的策略。视觉方向是物体的方向和观察者所面对的方向之间的角度。在这里，我们描述了人类的行为实验中，观察者使用视觉方向，而不是双目信息，估计一个对象的三维运动，即使这会导致他们作出系统性的错误。这表明最近的双眼3D运动感知模型可能没有反映人类观察者实际使用的策略。
The eyes receive slightly different views of the world, and the differences between their images (binocular disparity) are used to see depth. Several authors have suggested how the brain could exploit this information for three-dimensional (3D) motion perception, but here we consider a simpler strategy. Visual direction is the angle between the direction of an object and the direction that an observer faces. Here we describe human behavioral experiments in which observers use visual direction, rather than binocular information, to estimate an object's 3D motion even though this causes them to make systematic errors. This suggests that recent models of binocular 3D motion perception may not reflect the strategies that human observers actually use.