A failed attempt to explain relative motion illusions via motion blur, and a new sparse version. (September 2022)

• Record Type: Journal Article
• Authors: Bach, Michael
• Is Part Of: I-Perception. Volume 13:Number 5(2022)
• Publication Date: 2022-09
• Subjects: illusion -- relative motion -- contrast -- blur -- eye movement -- Ouchi; Perception -- Periodicals; Visual perception -- Periodicals; Perception; Perception; Electronic journals; Periodical; Fulltext; Internet Resources; Periodicals; Periodicals; 153.7
• DOI: 10.1177/20416695221124153
• Languages: English
• ISSNs: 2041-6695

Abstract

Visual patterns can evoke marked, even beautiful motion illusions even if they are static; eye movements in all likelihood serve as temporal modulators. This paper concentrates on Ouchi-type "relative" or "sliding" motion illusions. It outlines an eye-motion-evoked motion-blur hypothesis, which does not correctly predict the shift direction of maximal illusion. This failure led to a nearly new particularly simple stimulus: an arrangement of dashed lines that strongly evokes a relative motion illusion, the "orthogonal dotted lines sway." The latter is well explained by motion integration.