Variations and extensions of the kinetic Orbison illusion

Keywords: the kinetic Orbison illusion, geometrical illusion, relative motion, aperture problem for motion, induced motion

Abstract

When a dot moves along a square trajectory on concentric circles, the trajectory appears to bend toward the center of the circles (the kinetic Orbison illusion). This report demonstrates new illusions that are variations or extensions of the kinetic Orbison illusion. We found that some of them produced an illusory effect that was larger than the original version of the kinetic Orbison illusion (up to 1.8 times larger than the original). The illusion became even stronger when a dot moved along a triangular trajectory, reaching 1.4 times the strength as that of the strongest illusion with the square trajectory. The implications of these illusions for the kinetic Orbison illusion and the relationship to previously reported motion illusions are discussed.

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Published
2025-06-14
How to Cite
Ito , H., Kanematsu , T., Furukawa , R., Koyamate , T., de Jesus , S. A. M., & Jiang , M. (2025). Variations and extensions of the kinetic Orbison illusion. Journal of Illusion, 5. https://doi.org/10.47691/joi.v5.11582
Section
Phenomenal reports