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When the brain changes its mind: interocular grouping during binocular rivalry

I Kovács¹, T V Papathomas, M Yang

¹Laboratory of Vision Research, Rutgers University, Piscataway, NJ 08854, USA. ikovacs@cyclops.rutgers.edu

Proceedings of the National Academy of Sciences of the United States of America

|December 24, 1996

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Binocular rivalry may not solely be eye competition. Pattern coherency, not just the eye of origin, drives perceptual alternations, with brains reassembling fragmented images into coherent forms.

Area of Science:

Neuroscience
Visual Perception
Cognitive Science

Background:

The dominant theory of binocular rivalry posits competition between eyes via neural inhibition.
Conventional stimuli feature coherent patterns, reinforcing the eye-origin hypothesis.

Purpose of the Study:

To investigate whether pattern coherency or eye of origin drives perceptual alternations in binocular rivalry.
To determine if the brain can reassemble fragmented visual information into coherent percepts.

Main Methods:

Modified conventional binocular rivalry stimuli by creating "patchworks" of intermingled rivalrous images.
Presented these fragmented stimuli to observers to assess perceptual alternations.

Main Results:

Related Experiment Videos

Pattern coherency alone was sufficient to induce perceptual alternations.

The majority of observers successfully reassembled the fragmented "patchwork" images into coherent percepts.

Conclusions:

Binocular rivalry involves more than simple eye competition.
Pattern coherency plays a crucial role in driving perceptual alternations and image reassembly in binocular rivalry.