Motion direction distribution as a determinant of circular vection

Hiroyuki Ito, Tadahide Shibao

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Visually induced self-translation is called linear vection, while visually induced self-rotation is called circular vection. Impressions of circular vection and linear vection were measured using flow patterns presented on a flat screen. Subjects reported strong circular vection when the flow simulated a projected pattern of a rotating cylinder, which had gradients in speed and direction of moving elements on the screen. When speed gradients in a horizontal dimension were removed while not changing the direction distribution on the screen, strong circular vection was still reported. On the other hand, when the motion direction of all elements was the same (horizontal), having speed gradients, the circular vection was weak. The impression of linear vection showed the opposite trend. This result indicates not a speed distribution pattern but one of a two-dimensional direction on the retina determines the type of vection.

Original languageEnglish
Pages (from-to)564-570
Number of pages7
JournalPerceptual and motor skills
Issue number2
Publication statusPublished - Oct 1999

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Sensory Systems


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