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Related Concept Videos

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The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
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Related Experiment Video

Updated: May 12, 2026

How to Create and Use Binocular Rivalry
14:34

How to Create and Use Binocular Rivalry

Published on: November 10, 2010

A monocular contribution to stimulus rivalry.

Jan Brascamp1, Hansem Sohn, Sang-Hun Lee

  • 1Helmholtz Institute and Division of Experimental Psychology, Department of Psychology, Utrecht University, 3584 CS Utrecht, The Netherlands.

Proceedings of the National Academy of Sciences of the United States of America
|April 24, 2013
PubMed
Summary
This summary is machine-generated.

Stimulus rivalry, a visual competition between eyes, is not purely binocular. Early visual processing stages, including eye-specific ones, contribute to this phenomenon, challenging prior beliefs.

Keywords:
ambiguous stimulibinocular rivalrybistable perceptionflicker-and-swap rivalry

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Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex

Published on: February 8, 2020

Area of Science:

  • Neuroscience
  • Visual Perception
  • Computational Modeling

Background:

  • Stimulus rivalry involves alternating perception between dissimilar images presented to each eye.
  • Perceptual stability during rapid eye swaps suggests eye-independent processing.
  • Contrast adaptation, like the threshold elevation aftereffect, is thought to involve early, eye-specific cortical stages.

Purpose of the Study:

  • To investigate the neural locus of stimulus rivalry by examining its influence on contrast adaptation.
  • To determine if stimulus rivalry involves eye-specific neural processing stages.
  • To develop a computational model explaining these findings.

Main Methods:

  • Measuring the threshold elevation aftereffect under conditions of stimulus rivalry versus monocular viewing.
  • Assessing adaptation effects specifically related to the eye experiencing suppression during rivalry.
  • Developing and validating a computational model of stimulus rivalry.

Main Results:

  • Weaker threshold elevation aftereffects were observed when images were in stimulus rivalry compared to monocular viewing.
  • Suppression of an image during rivalry specifically reduced adaptation associated with the viewing eye.
  • The computational model successfully replicated the observed effects.

Conclusions:

  • Eye-specific neural events at early cortical stages contribute to stimulus rivalry.
  • Stimulus rivalry is not solely governed by eye-independent binocular processes.
  • These findings refine our understanding of visual competition and cortical processing.