Illusory movement of dotted lines

Hiroyuki Ito, Stuart Anstis, Patrick Cavanagh

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)


    When oblique rows of black and white dots drifted horizontally across a mid-grey surround, the perceived direction of motion was shifted to be almost parallel to the dotted lines and was often nearly orthogonal to the real motion. The reason is that the black/white contrast signals between adjacent dots along the length of the line are stronger than black/grey or white/grey contrast signals across the line, and the motion is computed as a vector sum of local contrast-weighted motion signals.

    Original languageEnglish
    Pages (from-to)1405-1409
    Number of pages5
    Issue number9
    Publication statusPublished - 2009

    All Science Journal Classification (ASJC) codes

    • Experimental and Cognitive Psychology
    • Ophthalmology
    • Sensory Systems
    • Artificial Intelligence


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