The Multiple Determination of Illusory Contours: 2. An Empirical Investigation

Judgments of contour strength or saliency for twenty-four illusory-contour configurations were subjected to a confirmatory factor analysis. A four-factor model that posited the involvement of simultaneous contrast, linear effects (assimilation and dissimilation), depth/completion cues, and feature a...

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Bibliographic Details
Published in:Perception (London) 1983-01, Vol.12 (3), p.293-303
Main Authors: Halpern, Diane F, Salzman, Billie, Harrison, Wayne, Widaman, Keith
Format: Article
Language:English
Subjects:
Adolescent
Adult
Depth Perception
Discrimination Learning
Form Perception
Humans
Illusions
Middle Aged
Optical Illusions
Perceptual Closure
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Summary:Judgments of contour strength or saliency for twenty-four illusory-contour configurations were subjected to a confirmatory factor analysis. A four-factor model that posited the involvement of simultaneous contrast, linear effects (assimilation and dissimilation), depth/completion cues, and feature analyzers accounted for a substantial proportion of the variance in judgments of illusory-contour strength. The hierarchical addition of a fifth factor, diffuse illusory contours, significantly improved the overall fit of the model, but added little to the proportion of explained variance. The taxonomic approach adopted provides support for a multiprocess model of illusory-contour perception.
ISSN:0301-0066
1468-4233
DOI:10.1068/p120293