title: Opponent colours induced by rotating discs.
abstract: We found a novel visual illusion by using a rotating disc that has some coloured sectors with black arcs. When this disc rotates, illusory colours are seen in the concentric rings that are created by the rotating arcs. The illusory colours are the opponent colours of the sectors that the corresponding arcs are in. Even though we could not differentiate the colours of the individual sectors when the disc rotated quickly, the illusory colours that were the opponent colours of the sector colours could be seen. This visual illusion thus suggests that our visual system can process visual stimuli that we cannot perceive as colours.
authors: Department of General System Studies, The University of Tokyo, 3-8-1 Komaba Meguro-ku, Tokyo 153-8902, Japan. fukuda@cs.c.u-tokyo.ac.jp
authors: Haruaki
authors: H
authors: Fukuda
authors: Kazuhiro
authors: K
authors: Ueda
mesh_terms: D000328:Adult; D003118:Color Perception / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009903:Optical Illusions / Q000502:physiology*; D011581:Psychological Tests; D012399:Rotation; D014796:Visual Perception / Q000502:physiology*; D055815:Young Adult