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Related Experiment Video

Updated: May 28, 2026

How to Create and Use Binocular Rivalry

How to Create and Use Binocular Rivalry

Published on: November 10, 2010

What is Grouping during Binocular Rivalry?

Sjoerd M Stuit¹, Chris L E Paffen, Maarten J van der Smagt

¹Division of Experimental Psychology, Helmholtz Institute, Neuroscience and Cognition Utrecht, Universiteit Utrecht Utrecht, Netherlands.

Frontiers in Human Neuroscience

|October 25, 2011

Summary

Binocular rivalry involves alternating perceptions. Eye-of-origin and orientation strongly influence grouping of spatially separated targets, impacting dominance durations in visual perception.

Keywords:

binocular rivalry grouping interocular grouping joint predominance

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Area of Science:

Neuroscience
Visual Perception
Cognitive Science

Background:

Binocular rivalry involves alternating perceptions between dissimilar images presented to each eye.
Perception during rivalry is thought to arise from local competition, but global factors also influence it.
Spatially separated targets with similar features can exhibit simultaneous dominance, suggesting grouping mechanisms.

Purpose of the Study:

To investigate how spatially separated rival targets group during binocular rivalry.
To determine the relative contributions of eye-of-origin, orientation, and visual field location to this grouping.
To quantify these grouping effects for predictive modeling of rivalry dynamics.

Main Methods:

Dichoptic presentation of dissimilar images to induce binocular rivalry.
Systematic variation of target separation, eye-of-origin, orientation, and hemifield presentation.
Quantification of grouping effects on dominance durations and prediction of rivalry outcomes.

Main Results:

Eye-of-origin was the strongest cue for grouping, overriding spatial separation.
Identical orientations promoted grouping, even across different eyes.
Grouping effects were additive and modulated by hemifield distribution, with eye-of-origin influencing same- vs. between-hemifield grouping.

Conclusions:

Binocular rivalry grouping is influenced by both eye-based and orientation-based mechanisms, which act independently and additively.
Visual field distribution interacts with these cues, affecting grouping strength.
Quantified grouping contributions improve predictions of dominance durations, aiding models of binocular rivalry.