Slant cues are processed with different latencies for the online control of movement

C.M. van Mierlo, S. Louw, J.B.J. Smeets, E. Brenner

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    Abstract

    For the online control of movement, it is important to respond fast. The extent to which cues are effective in guiding our actions might therefore depend on how quickly they provide new information. We compared the latency to alter a movement when monocular and binocular cues indicated that the surface slant had changed. We found that subjects adjusted their movement in response to three types of information: information about the new slant from the monocular image, information about the new slant from binocular disparity, and information about the change in slant from the change in the monocular image. Responses to changes in the monocular image were approximately 40 ms faster than responses to a new slant estimate from binocular disparity and about 90 ms faster than responses to a new slant estimate from the monocular image. Considering these delays, adjustments of ongoing movements to changes in slant will usually be initiated by changes in the monocular image. The response will later be refined on the basis of combined binocular and monocular estimates of slant. © ARVO.
    Original languageEnglish
    Article number25
    JournalJournal of Vision
    Volume9
    Issue number3
    DOIs
    Publication statusPublished - 2009

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