An illusion of velocity in motion perception.

K. Noguchi, K. Haishi, D. Sato

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)112-114
Number of pages3
JournalPerceptual and motor skills
Issue number1
Publication statusPublished - 1994 Feb

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Sensory Systems


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