CATEGORICAL EFFECTS IN THE PERCEPTION OF FACES
CATEGORICAL EFFECTS IN THE PERCEPTION OF FACES
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DOI：
10.1016/0010-0277(95)00669-x
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发表时间：
1995-12-01
期刊：
影响因子：
3.4
通讯作者：
KEIL, FC
中科院分区：
文献类型：
--
作者：
BEALE, JM;KEIL, FC
这些研究表明，分类知觉效应可能比人们通常认为的要普遍得多，而且在不同的处理水平上，它们可能以明显相似的方式发生。为了测试个体面部表征的性质，在熟悉面孔的个体样本之间生成了“变形”面部的线性连续体。在单独的分类，歧视和“更好的相似性”的任务，受试者看到对面孔从这些连续。当面孔对跨越明显的类别边界时，受试者最准确地进行区分;因此，个体面孔被分类地感知。面孔对的熟悉程度与分类效应的大小之间存在高度相关。因此，范畴知觉并不局限于低层次的知觉连续体，而是可以发生在更高层次，也可以通过经验获得。
These studies suggest categorical perception effects may be much more general than has commonly been believed and can occur in apparently similar ways at dramatically different levels of processing. To test the nature of individual face representations, a linear continuum of ''morphed'' faces was generated between individual exemplars of familiar faces. In separate categorization, discrimination and ''better-likeness'' tasks, subjects viewed pairs of faces from these continua. Subjects discriminate most accurately when face-pairs straddle apparent category boundaries; thus individual faces are perceived categorically. A high correlation is found between the familiarity of a face-pair and the magnitude of the categorization effect. Categorical perception therefore is not limited to low-level perceptual continua, but can occur at higher levels and may be acquired through experience as well.