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    Hearing a point-light talker: An auditory influence on a visual detection task

    Access Status
    Fulltext not available
    Authors
    Kim, J.
    Kroos, Christian
    Davis, C.
    Date
    2010
    Type
    Journal Article
    
    Metadata
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    Citation
    Kim, J. and Kroos, C. and Davis, C. 2010. Hearing a point-light talker: An auditory influence on a visual detection task. Perception. 39 (3): pp. 407-416.
    Source Title
    Perception
    ISSN
    03010066
    URI
    http://hdl.handle.net/20.500.11937/16876
    Collection
    • Curtin Research Publications
    Abstract

    Parsing of information from the world into objects and events occurs in both the visual and auditory modalities. It has been suggested that visual and auditory scene perceptions involve similar principles of perceptual organisation. We investigated here cross-modal scene perception by determining whether an auditory stimulus could facilitate visual object segregation. Specifically, we examined whether the presentation of matched auditory speech would facilitate the detection of a point-light talking face amid point-light distractors. An adaptive staircase procedure (3-up – 1-down rule) was used to estimate the 79% correct threshold in a two-alternative forced-choice procedure. To determine if different degrees of speech motion would show auditory influence of different sizes, two speech modes were tested (in quiet and Lombard speech). A facilitatory auditory effect on talking-face detection was found; the size of this effect did not differ between the different speech modes.

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