Further evidence for monocular determinants of perceived plaid direction

David Alais*, Darren Burke, Peter Wenderoth

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This report adds to existing evidence that a monocular, feature-sensitive motion mechanism is involved in two-dimensional (2-D) motion processing, and also accounts for an earlier, unexplained result. The central finding is that the perceived direction of a monocularly viewed type II plaid changes over a period of continuous exposure such that post-adaptation direction judgements exhibit more of the component-direction bias known to occur with these stimuli than pre-adaptation judgements. These adaptation effects are confined to the adapted eye: when the adapting stimulus is presented to one eye, pre- and post-adaptation direction judgements made with the other, non-adapted eye are identical. These results strongly suggest the involvement of a monocular motion mechanism in two-dimensional motion processing, in addition to the more commonly presumed binocular mechanisms.

Original languageEnglish
Pages (from-to)1247-1253
Number of pages7
JournalVision Research
Volume36
Issue number9
DOIs
Publication statusPublished - May 1996

Keywords

  • adaptation
  • direction perception
  • motion aftereffect
  • motion perception

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