Representation of statistical properties

被引：469

作者：

Chong, SC ^{[1
]}

Treisman, A ^{[1
]}

机构：

[1] Princeton Univ, Dept Psychol, Princeton, NJ 08544 USA

来源：

VISION RESEARCH | 2003年 / 43卷 / 04期

关键词：

statistical properties; size; perception; mean;

D O I：

10.1016/S0042-6989(02)00596-5

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Everyday scenes often contain sets of similar objects. Perceptual representations may summarize these with statistical descriptors. After determining the psychological mean of two sizes, we measured thresholds for judging the mean with arrays of 12 circles of heterogeneous sizes. They were close to those for the size of elements in homogeneous arrays and single elements, and were little affected by either exposure duration (50-1000 ms) or memory delays (up to 2s). They were only slightly more accurate within the same distribution than across different distributions (normal, uniform, two-peaks, and homogeneous), confirming that subjects were indeed averaging sizes. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：393 / 404

页数：12

共 37 条

[1] Seeing sets: Representation by statistical properties [J].