知觉加工中存在颜色类别知觉效应的证据

An Evidence for the Effect of Categorical Perception on Color Perception

对于颜色的辨别具有类别知觉效应：类间两种颜色的辨别能力比同等颜色空间距离的类内两种颜色的辨别能力更高。对于类别知觉效应的产生机制存在两种观点：知觉特性假设、语言标签假设。以往的研究范式由于实验任务涉及到工作记忆成分，被试在完成任务时会自动地对颜色命名以利于记忆，因此所得证据大多支持语言标签假设，而对知觉特性假设的支持证据则很少。本文利用目标觉察范式最大限度去掉了工作记忆成分，通过测量被试辨别两种颜色的反应时，得到了类别知觉效应。并通过语言干扰任务进一步证实在该实验范式下类别知觉效应与语言的无关性。从而，为知觉特性假设提供了证据。

It has been well documented that color perception exhibits the characteristics of categorical perception such that participants’ performance is better when discriminating stimuli across color category boundaries than within the same color category. However， it is unclear whether the effect of categorical perception on color perception is in fact a perceptual phenomenon. Most of the evidence for the categorical perception of color was derived from tasks that considerably involved working memory;