A transition between eye and object rivalry determined by stimulus coherence

Yoram Bonneh, Dov Sagi, Avi Karni

Research output: Contribution to journalArticlepeer-review

Abstract

Two orthogonal patterns presented to the two eyes, respectively, are perceived as alternating in time, a phenomenon often assumed to reflect competition between neuronal activities corresponding to the two eyes, presumably in the primary visual cortex. Recent evidence supports a competition between neuronal activities corresponding to the two patterns (objects) at some higher cortical processing stage after inputs from the two eyes have converged. Here, using textures made of Gabor signals, we present psychophysical data showing that the level of visual processing at which competition takes place and is resolved, is determined by the degree of stimulus coherence. Moreover, depending on stimulus parameters, competition may occur at several levels of processing at the same time.

Original languageEnglish
Pages (from-to)981-989
Number of pages9
JournalVision Research
Volume41
Issue number8
DOIs
StatePublished - 2001
Externally publishedYes

Bibliographical note

Funding Information:
We thank Michael Merzenich, Ariella Popple, Barabara Zenger and Srikantan Nagarajan for reviewing the manuscript at different stages. This work was supported by the Nella and Leon Benoziyo Center for Neuroscience.

Keywords

  • Binocular rivalry
  • Perceptual grouping
  • Visual awareness

ASJC Scopus subject areas

  • Sensory Systems
  • Ophthalmology

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