The effect of interactions between one-dimensional component gratings on two-dimensional motion perception

Darren Burke, Peter Wenderoth*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    36 Citations (Scopus)

    Abstract

    Ferrera and Wilson [(1990) Vision Research, 30, 273-287] reported veridical perception of the direction of motion of Type I plaids, whose component gratings span the resultant direction, but marked misperception of the direction of motion of Type II plaids, whose component gratings both lie on one side of the resultant direction. Because they failed to find any effect of component direction (angular) separation on this misperception, Ferrera and Wilson concluded that the misperception was not due to perceptual repulsion of component directions. We report that component direction repulsion does occur, that plaid direction misperception is tuned to component separation, with larger repulsions for smaller angles. It is concluded that there is no fundamental difference in direction coding for Type I and Type II plaids, and that Ferrera and Wilson failed to find a direction separation effect because the range of separations they used was insufficiently broad to detect the slope of the angular function.

    Original languageEnglish
    Pages (from-to)343-350
    Number of pages8
    JournalVision Research
    Volume33
    Issue number3
    DOIs
    Publication statusPublished - 1993

    Keywords

    • Plaid Motion Intersection of constraints Distribution shift Direction perception

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