Representation of statistical properties.

Full Abstract

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.

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Author information

Author/s: Chong, Sang Chul (SC); Treisman, Anne (A);

Affiliation: Department of Psychology, Princeton University, Green Hall, Princeton, NJ, 08544, USA. scchong@princeton.edu

Journal and publication information

Publication Type: Journal Article

Journal: Vision research (Vision Res), published in England. (Language: eng)

Reference: 2003-Feb; vol 43 (issue 4) : pp 393-404

Dates: Created 2003/01/21; Completed 2003/06/06; Revised 2007/11/15;

PMID: 12535996, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Photic Stimulation - methods
Psychophysics
Sensory Thresholds
Size Perception
Statistics as Topic

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