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  • Effect of motion smoothness on the flash-lag illusion

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    Author
    Rizk, Jacques
    Chappell, Mark
    Hine, Trevor
    Year published
    2009
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    Abstract
    Two flash-lag experiments were performed in which the moving object was flashed in a succession of locations creating apparent motion and the inter-stimulus distance (ISD) between those locations was varied. In the first (n = 10), the size of the flash-lag illusion was a declining non-linear function of the ISD and the largest reduction in its magnitude corresponded closely to the value where observers judged the continuity of optimal apparent motion to be lost. In the second (n = 11) with large ISDs, we found the largest illusions when the flash initiated the movement, and no effect was observed when the flash terminated ...
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    Two flash-lag experiments were performed in which the moving object was flashed in a succession of locations creating apparent motion and the inter-stimulus distance (ISD) between those locations was varied. In the first (n = 10), the size of the flash-lag illusion was a declining non-linear function of the ISD and the largest reduction in its magnitude corresponded closely to the value where observers judged the continuity of optimal apparent motion to be lost. In the second (n = 11) with large ISDs, we found the largest illusions when the flash initiated the movement, and no effect was observed when the flash terminated the movement. The data support motion position biasing or temporal integration accounts of the illusion with processing predominantly based on motion after the flash.
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    Journal Title
    Vision Research
    Volume
    49
    Issue
    17
    DOI
    https://doi.org/10.1016/j.visres.2009.06.010
    Copyright Statement
    © 2009 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Cognitive Science not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/30276
    Collection
    • Journal articles

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