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    Effects of aging on figure-ground perception: Convexity context effects and competition resolution

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    Author
    Lass, Jordan W.
    Bennett, Patrick J.
    Peterson, Mary A.
    Sekuler, Allison B.
    Affiliation
    Univ Arizona
    Issue Date
    2017-02-28
    Keywords
    figure-ground
    aging
    perceptual competition
    
    Metadata
    Show full item record
    Publisher
    ASSOC RESEARCH VISION OPHTHALMOLOGY INC
    Citation
    Effects of aging on figure-ground perception: Convexity context effects and competition resolution 2017, 17 (2):15 Journal of Vision
    Journal
    Journal of Vision
    Rights
    Copyright 2017 The Authors This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    We examined age-related differences in figure-ground perception by exploring the effect of age on Convexity Context Effects (CCE; Peterson & Salvagio, 2008). Experiment 1, using Peterson and Salvagio's procedure and black and white stimuli consisting of 2 to 8 alternating concave and convex regions, established that older adults exhibited reduced CCEs compared to younger adults. Experiments 2 and 3 demonstrated that this age difference was found at various stimulus durations and sizes. Experiment 4 compared CCEs obtained with achromatic stimuli, in which the alternating convex and concave regions were each all black or all white, and chromatic stimuli in which the concave regions were homogeneous in color but the convex regions varied in color. We found that the difference between CCEs measured with achromatic and colored stimuli was larger in older than in younger adults. Our results are consistent with the hypothesis that the senescent visual system is less able to resolve the competition among various perceptual interpretations of the figure-ground relations among stimulus regions.
    ISSN
    1534-7362
    PubMed ID
    28245496
    DOI
    10.1167/17.2.15
    Version
    Final published version
    Sponsors
    Canadian Institute of Health Research; Canada Research Chair Programme; Office of Naval Research; National Science Foundation
    Additional Links
    http://jov.arvojournals.org/article.aspx?doi=10.1167/17.2.15
    ae974a485f413a2113503eed53cd6c53
    10.1167/17.2.15
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