The nature of learned categorical perception effects:: a psychophysical approach
The nature of learned categorical perception effects:: a psychophysical approach
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DOI：
10.1016/j.cognition.2004.07.002
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发表时间：
2005-03-01
期刊：
影响因子：
3.4
通讯作者：
Özgen, E
中科院分区：
文献类型：
--
作者：
Notman, LA;Sowden, PT;Özgen, E
范畴知觉经常被认为是认知影响知觉的一个显著例子。然而，一些证据表明，这个词用词不当，其效果基于认知而不是知觉处理。在这里，使用心理物理方法，我们提供了与依赖于视觉处理流中的分析的获得性范畴知觉效应一致的证据。受试者对他们已经学会放在不同类别中的格纹图案的辨别能力的改善是围绕着在类别学习过程中经历的图案的方向进行的。因此，在这里，范畴知觉可能是基于分析的方位选择阶段，对诊断类别特征的注意调制知觉学习产生的。这有力地证明了类别学习可以改变我们对世界的认知。(C)2005 Elsevier B.V.保留所有权利。
Categorical perception is often cited as a striking example of cognitive influences on perception. However, some evidence suggests the term is a misnomer, with effects based on cognitive not perceptual processing. Here, using a psychophysical approach, we provide evidence consistent with a learned categorical perception effect that is dependent on analysis within the visual processing stream. An improvement in participants' discrimination between grating patterns that they had learned to place in different categories was 'tuned' around the orientation of the patterns experienced during category learning. Thus, here, categorical perception may result from attentionally modulated perceptual learning about diagnostic category features, based upon orientation-selective stages of analysis. This argues strongly that category learning can alter our perception of the world. (C) 2005 Elsevier B.V. All rights reserved.