Perspective-based illusory movement in a flat billboard-an explanation

Thomas V. Papathomas, Zoe Kourtzi, Andrew E. Welchman

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We describe a compelling motion illusion elicited by a huge billboard placed along a street, depicting a building that contains strong perspective cues. When observers move fast along the opposite sidewalk, they perceive the depicted building as rotating in their direction of travel. This is a special case of the 'following', or 'pointing out of the picture', illusion that elicits a strong illusory motion percept. Here we discuss the cause of the illusory motion and suggest that the brain relies on the depicted perspective cues to infer a 3-D shape and a concomitant motion that is incompatible with the physical pictorial surface.

Original languageEnglish (US)
Pages (from-to)1086-1093
Number of pages8
JournalPerception
Volume39
Issue number8
DOIs
StatePublished - 2010

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Ophthalmology
  • Sensory Systems
  • Artificial Intelligence

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