Perceptual Bias for Forward-Facing Motion

Michael K. Mcbeath, Kazunori Morikawa, Mary K. Kaiser

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


When an occluded horizontal row of shapes is shifted laterally, apparent motion can he experienced in either the leftward or the rightward direction. Four experiments provide evidence for a motion bias in the direction that shapes appear to face. The bias tended to be largest when directionality was specified geometrically (e.g., triangles), next largest when it was specified biologically (e.g., mice), and absent when it was specified calligraphically (e.g., letter R). The bias increased parametrically as a function of triangle pointedness and was consistent with the directional interpretation of an ambiguous duck-rabbit. The results support the existence of a cognitively specified forward-facing attribute that can influence experienced direction of motion.

Original languageEnglish (US)
Pages (from-to)362-367
Number of pages6
JournalPsychological Science
Issue number6
StatePublished - Nov 1992
Externally publishedYes

ASJC Scopus subject areas

  • Psychology(all)


Dive into the research topics of 'Perceptual Bias for Forward-Facing Motion'. Together they form a unique fingerprint.

Cite this