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Title:Perceptual similarity of closed contours
Author(s):Cortese, James Michael
Doctoral Committee Chair(s):Kramer, Arthur F.
Department / Program:Psychology
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Psychology, Experimental
Abstract:A model is presented for characterizing the perceptual similarities of closed contours, utilizing a Fourier analysis on the cumulative angular bend of the curve. The model is tested in four experiments, using both ratings of similarity and accuracy of discrimination. The results indicate that in cases where the underlying Fourier dimensionality is low, the model is quite successful, as indicated by consistently high, significant correlations between the predicted and judged similarities, and by the fit of Fourier components to the dimensions recovered from multidimensional scaling solutions. When the dimensionality in the frequency space is high, the model is also shown to account for measures of perceptual similarity, albeit to a lesser degree. Implications of the work, and suggestions for alternative versions of the model, are discussed.
Issue Date:1992
Rights Information:Copyright 1992 Cortese, James Michael
Date Available in IDEALS:2011-05-07
Identifier in Online Catalog:AAI9305496
OCLC Identifier:(UMI)AAI9305496

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