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  • Attending to illusory differences in object size

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    JefferiesPUB656.pdf (665.9Kb)
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    Accepted Manuscript (AM)
    Author(s)
    Jefferies, Lisa N
    Gmeindl, Leon
    Yantis, Steven
    Griffith University Author(s)
    Jefferies, Lisa
    Year published
    2014
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    Abstract
    Focused visual attention can be shifted between objects and locations (attentional orienting) or expanded and contracted in spatial extent (attentional focusing). Although orienting and focusing both modulate visual processing, they have been shown to be distinct, independent modes of attentional control. Objects play a central role in visual attention, and it is known that high-level object representations guide attentional orienting. It not known, however, whether attentional focusing is driven by low-level object representations (which code object size in terms of retinotopic extent) or by high-level representations (which ...
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    Focused visual attention can be shifted between objects and locations (attentional orienting) or expanded and contracted in spatial extent (attentional focusing). Although orienting and focusing both modulate visual processing, they have been shown to be distinct, independent modes of attentional control. Objects play a central role in visual attention, and it is known that high-level object representations guide attentional orienting. It not known, however, whether attentional focusing is driven by low-level object representations (which code object size in terms of retinotopic extent) or by high-level representations (which code perceived size). We manipulated the perceived size of physically identical objects by using line drawings or photographs that induced the Ponzo illusion, in a task requiring the detection of a target within these objects. The distribution of attention was determined by the perceived size and not by the retinotopic size of an attended object, indicating that attentional focusing is guided by high-level object representations.
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    Journal Title
    Attention, Perception and Psychophysics
    Volume
    76
    Issue
    5
    DOI
    https://doi.org/10.3758/s13414-014-0666-7
    Copyright Statement
    © 2014 Psychonomic Society, Inc. Published by Springer New York. This is an electronic version of an article published in Attention, Perception & Psychophysics, July 2014, Volume 76, Issue 5, pp 1393–1402. This document may not exactly correspond to the final published version. Psychonomic Society Publication disclaims any responsibility or liability for errors in this manuscript. The original publication is available at www.springerlink.com
    Subject
    Sensory processes, perception and performance
    Cognitive and computational psychology
    Publication URI
    http://hdl.handle.net/10072/173493
    Collection
    • Journal articles

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