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Related Experiment Video

Updated: Nov 16, 2025

How to Create and Use Binocular Rivalry

How to Create and Use Binocular Rivalry

Published on: November 10, 2010

Parameter dependence in visual pattern-component rivalry at onset and during prolonged viewing.

Thomas G G Wegner¹, Jan Grenzebach¹, Alexandra Bendixen²

¹Chemnitz University of Technology, Institute of Physics, Physics of Cognition Group, Germany; Chemnitz University of Technology, Institute of Physics, Cognitive Systems Lab, Germany.

Vision Research

|February 20, 2021

Summary

This summary is machine-generated.

The initial perception of ambiguous visual stimuli differs from prolonged viewing. This study reveals distinct rules govern the first percept in visual pattern-component rivalry, impacting multistability.

Keywords:

Awareness Consciousness Eye movements Multistability Optokinetic nystagmus (OKN)Rivalry

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Area of Science:

Neuroscience
Cognitive Science
Visual Perception

Background:

Perceptual interpretations of ambiguous stimuli (multistability) alternate over time.
Debate exists on whether initial and prolonged stimulus presentations follow similar perceptual regularities.

Purpose of the Study:

To investigate if the first percept after stimulus onset follows the same rules as percepts during prolonged viewing.
To examine the role of stimulus parameters, like opening angle, on initial versus sustained perception in visual rivalry.

Main Methods:

Utilized a visual pattern-component rivalry paradigm with overlaid drifting gratings.
Varied the enclosed angle (opening angle) between gratings and stimulus orientation.
Analyzed participant reports and eye movements (optokinetic nystagmus) to characterize percept formation.

Main Results:

The relative number of integrated percepts increased with opening angle, with a steeper curve at stimulus onset.
The point of perceptual equality (50% integrated percepts) occurred at a smaller opening angle at onset compared to prolonged viewing.
Dominance durations of integrated percepts were longer at onset and increased with opening angle.

Conclusions:

The first percept in multistability exhibits distinct stimulus-parameter dependencies compared to prolonged viewing.
This highlights a unique role for the initial percept in shaping ongoing perceptual experiences.
Findings contribute to understanding the dynamics of visual perception and multistability.