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How to Create and Use Binocular Rivalry
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'Two vs one' rivalry by the Loxley-Robinson model.

August Romeo1, Hans Supèr2,3,4

  • 1Department of Cognition, Development and Educational Psychology, Faculty of Psychology, University of Barcelona (UB), Barcelona, Spain.

Biological Cybernetics
|September 21, 2017
PubMed
Summary

This study models visual rivalry using a competitive framework, revealing conditions for bistable perception in three-peaked visual inputs. The findings offer insights into how the brain processes competing visual information.

Keywords:
Bi-stabilityNeural field modelsRivalryVision

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Area of Science:

  • Visual Perception
  • Computational Neuroscience
  • Psychophysics

Background:

  • Visual rivalry is a phenomenon where perception alternates between two competing stimuli.
  • Existing models often focus on simpler, one-dimensional competition scenarios.
  • Understanding complex visual competition is crucial for deciphering neural processing.

Purpose of the Study:

  • To adapt the Loxley and Robinson competitive model for a specific visual rivalry case.
  • To investigate the role of three-peaked visual inputs with symmetrical maxima.
  • To identify conditions leading to bistable percepts in this configuration.

Main Methods:

  • Application of the Loxley and Robinson competitive model.
  • Introduction of three-peaked visual stimuli with symmetrical maxima.
  • Analysis of model outputs to interpret perceptual phenomena.

Main Results:

  • The model successfully generates conditions interpretable as bistable perception.
  • This bistable percept is analogous to one-dimensional competition scenarios.
  • The study highlights the significance of three-bump configurations in visual processing.

Conclusions:

  • The competitive model effectively explains bistable perception in a specialized visual rivalry.
  • Symmetrical three-peaked inputs can lead to competition between central and flanking image regions.
  • This research contributes to understanding complex visual competition and perceptual stability.