title: Second-Order Footsteps Illusions.
abstract: In the "footsteps illusion", light and dark squares travel at constant speed across black and white stripes. The squares appear to move faster and slower as their contrast against the stripes varies. We now demonstrate some second-order footsteps illusions, in which all edges are defined by colors or textures-even though luminance-based neural motion detectors are blind to such edges.
authors.affiliation: Department of Psychology, Ritsumeikan University, Kyoto, Japan.
authors.forename: Akiyoshi
authors.initials: A
authors.lastname: Kitaoka
authors.affiliation: Department of Psychology, University of California, San Diego, CA, USA.
authors.forename: Stuart
authors.initials: S
authors.lastname: Anstis
keywords: Motion; abutting gratings; footsteps; illusion; reverse phi; second-order; texture perception