Oğmen Haluk
Department of Electrical & Computer Engineering, Center for Neuro-Engineering & Cognitive Science, University of Houston, Houston, TX 77204-4005 USA.
Adv Cogn Psychol. 2008 Jul 15;3(1-2):67-84. doi: 10.2478/v10053-008-0015-2.
Because object and self-motion are ubiquitous in natural viewing conditions, understanding how the human visual system achieves a relatively clear perception for moving objects is a fundamental problem in visual perception. Several studies have shown that the visible persistence of a briefly presented stationary stimulus is approximately 120 ms under normal viewing conditions. Based on this duration of visible persistence, we would expect moving objects to appear highly blurred. However, in human vision, objects in motion typically appear relatively sharp and clear. We suggest that clarity of form in dynamic viewing is achieved by a synergy between masking, perceptual grouping, and motion computation across retinotopic and non-retinotopic representations. We also argue that dissociations observed in masking are essential to create and maintain this synergy.
由于在自然观看条件下物体和自身运动无处不在，理解人类视觉系统如何对移动物体实现相对清晰的感知是视觉感知中的一个基本问题。多项研究表明，在正常观看条件下，短暂呈现的静止刺激的可见持续时间约为120毫秒。基于这个可见持续时间，我们预计移动物体看起来会高度模糊。然而，在人类视觉中，运动中的物体通常看起来相对清晰。我们认为，动态观看中形状的清晰度是通过掩蔽、知觉分组以及跨视网膜拓扑和非视网膜拓扑表征的运动计算之间的协同作用来实现的。我们还认为，在掩蔽中观察到的分离对于创建和维持这种协同作用至关重要。
