Psychophysical and cognitive aspects of categorical perception: A critical overview
Psychophysical and cognitive aspects of categorical perception: A critical overview
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分类知觉的心理物理和认知方面：批判性概述
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
S. Harnad
中科院分区：
文献类型：
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作者：
S. Harnad
分类是一种非常基本的认知活动。它参与了
Categorization is a very basic cognitive activity. It is involved in
any task that calls for differential responding, from operant discrimination to
pattern recognition to naming and describing objects and states-of-affairs.
Explanations of categorization range from nativist theories denying that any
nontrivial categories are acquired by learning to inductivist theories claiming
that most categories are learned. "Categorical perception" (CP) is the name
given to a suggestive perceptual phenomenon that may serve as a useful
model for categorization in general: For certain perceptual categories,
within-category differences look much smaller than between-category
differences even when they are of the same size physically. For example, in
color perception, differences between reds and differences between yellows
look much smaller than equal-sized differences that cross the red/yellow
boundary; the same is true of the phoneme categories /ba/ and /da/. Indeed,
the effect of the category boundary is not merely quantitative, but qualitative.