Lateral motion bias associated with reading direction

Kazunori Morikawa, Michael K. McBeath

Research output: Contribution to journalArticlepeer-review

72 Scopus citations


We found that when Americans view ambiguous lateral long-range apparent motion, they exhibit a robust bias to experience leftward movement. In successive experiments, right-handers and lefthanders, and left-side drivers from Japan equally manifested this leftward bias. However, bilingual viewers whose first language reads from right to left exhibited no lateral bias. Furthermore, the bilingual sample produced a significant correlation between exposure to English and extent of leftward motion bias. The findings provide strong evidence that reading habits can influence directionality in motion perception.

Original languageEnglish (US)
Pages (from-to)1137-1141
Number of pages5
JournalVision Research
Issue number6
StatePublished - Jun 1992
Externally publishedYes


  • Apparent motion
  • Handedness
  • Lateral motion
  • Lateralization
  • Motion perception
  • Reading
  • Saccades

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems


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