Appearance of an illusory object in the blind spot

Yukyu Araragi, Hiroyuki Ito, Shoji Sunaga

    Research output: Contribution to journalShort surveypeer-review

    1 Citation (Scopus)


    We report a phenomenon showing new aspects of perceptual filling-in at the blind spot. When two and three discs were presented below the blind spot, observers perceived them as three and four discs, respectively, but when they were presented in the nasal visual field as a control, the perceived numbers were veridical. The phenomenon demonstrates that the visual system produces an illusory object in the blind spot even when the inducing objects presented on only one side of the blind spot are clearly discrete and countable.

    Original languageEnglish
    Pages (from-to)1301-1304
    Number of pages4
    Issue number8
    Publication statusPublished - 2008

    All Science Journal Classification (ASJC) codes

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


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