Perceiving-the-present: a general theory of illusions

描述（由申请人提供）：“感知当前”是指视觉系统试图校正视网膜-感知延迟的想法。Changizi已经表明，经典的几何错觉是这种视觉策略的结果，并且在这个提议中认为，相同的想法延伸到二十多个其他类别的错觉，例如（a）大小对比，（B）物体在具有高空间频率的视野部分中似乎移动得更快，（c）更大空间频率的物体在亮度对比中似乎更低，（d）运动对比，（e）具有较大亮度对比度的对象看起来更大且更快，（f）高亮度对比度环境中的目标看起来亮度对比度更低，（g）深度对比度，以及（h）更中央凹地观看的对象看起来更大且更快。这项拟议中的研究将使用两种选择的强制选择和零化设计来测试这一假设所做的20多个预测，希望能证实似乎是支配视觉感知的核心原则。对视觉系统计算功能的这种阐释是非常有用的，因为如果不了解功能，就无法理解大脑中实现这些功能的机制。

DESCRIPTION (provided by applicant): "Perceiving-the-present" refers to the idea that the visual system attempts to correct for the retina-to-percept delay. Changizi has shown that the classical geometrical illusions are consequences of this strategy of vision, and argues in this proposal that the same idea extends to more than two dozen other classes of illusion, such as (a) size contrast, (b) objects appear to move faster in parts of the visual field with high spatial frequency, (c) greater spatial frequency objects appear lower in luminance contrast, (d) motion contrast, (e) objects with greater luminance contrast appear both larger and faster, (f) targets in high luminance contrast surrounds appear lower in luminance contrast, (g) depth contrast, and (h) objects viewed more foveally appear both larger and faster. The proposed research would use two-alternative forced choice and nulling designs to test the more than two dozen predictions made by this hypothesis, with the hope of confirming what appears to be a central principle governing visual perception. Such elucidation of the function computed by the visual system is of great use, for without understanding function, one cannot make sense of the mechanisms implementing those functions in the brain.