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    Competing for Consciousness: Prolonged Mask Exposure Reduces Object Substitution Masking

    Access Status
    Fulltext not available
    Authors
    Goodhew, S.
    Visser, T.
    Lipp, Ottmar
    Dux, P.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Goodhew, S. and Visser, T. and Lipp, O. and Dux, P. 2011. Competing for Consciousness: Prolonged Mask Exposure Reduces Object Substitution Masking. Journal of Experimental Psychology: Human Perception and Performance. 37 (2): pp. 588-596.
    Source Title
    Journal of Experimental Psychology: Human Perception and Performance
    DOI
    10.1037/a0018740
    ISSN
    0096-1523
    School
    School of Psychology and Speech Pathology
    URI
    http://hdl.handle.net/20.500.11937/42962
    Collection
    • Curtin Research Publications
    Abstract

    In object substitution masking (OSM) a sparse, temporally trailing 4-dot mask impairs target identification, even though it has different contours from, and does not spatially overlap with the target. Here, we demonstrate a previously unknown characteristic of OSM: Observers show reduced masking at prolonged (e.g., 640 ms) relative to intermediate mask durations (e.g., 240 ms). We propose that with prolonged exposure, the mask's visual representation is consolidated, which allows processing of the lingering target icon to be reinitiated, thereby improving performance. Our findings suggest that when the visual system is confronted with 2 temporally contiguous stimuli, although one may initially gain access to consciousness above the other, the "losing" stimulus is not irreversibly lost to awareness. © 2010 American Psychological Association.

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