title: An illusion of velocity in motion perception.
abstract: We report a phenomenon that seems to have potential to elucidate a role of eye movement in motion perception. When tracking a target controlled by a triangular wave, the viewer perceives movement of the target like a ball bouncing in between two walls. We measured eye movement with electrooculograms (EOGs) when the subject was tracking a target controlled by a triangular wave. Eye movement after passing the turning point and rapidly returning to the target with saccadic movement and then smoothly tracking the target was recorded for all 4 adults. It was considered that extraretinal information on eye position during saccade may mainly contribute to this illusion.
authors.affiliation: Department of Educational Research for the Handicapped Tohoku University, Sendai, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Noguchi
authors.forename: K
authors.initials: K
authors.lastname: Haishi
authors.forename: D
authors.initials: D
authors.lastname: Sato
mesh_terms: D000054:Acceleration; D001288:Attention; D004585:Electrooculography; D005133:Eye Movements; D006801:Humans; D009039:Motion Perception; D009903:Optical Illusions; D011597:Psychomotor Performance; D011698:Pursuit, Smooth; D011930:Reaction Time; D012438:Saccades