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Updated: Nov 2, 2025

Online Transcranial Magnetic Stimulation Protocol for Measuring Cortical Physiology Associated with Response Inhibition
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Does Cortical Inhibition Explain the Correlation Between Bistable Perception Paradigms?

Abhilasha R Jagtap1, Jan W Brascamp1

  • 1Department of Psychology, Michigan State University, East Lansing, United States.

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Summary
This summary is machine-generated.

Cortical inhibition does not explain why people perceive binocular rivalry and bistable moving plaids similarly. This study found no link between center-surround suppression and percept durations, challenging previous theories.

Keywords:
binocular rivalrybistable moving plaidscenter-surround suppressioncortical inhibitionindividual differences

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Area of Science:

  • Neuroscience
  • Perceptual Psychology
  • Computational Neuroscience

Background:

  • Perceptual fluctuations in bistable stimuli are stochastic.
  • Across-observer correlations exist in percept durations for stimuli like binocular rivalry and bistable moving plaids.
  • Neural inhibition is hypothesized to underlie perceptual fluctuations in binocular rivalry.

Purpose of the Study:

  • To investigate if between-observer variability in cortical inhibition explains correlated percept durations between binocular rivalry and bistable moving plaid perception.
  • To assess the role of center-surround suppression as a behavioral measure of cortical inhibition.

Main Methods:

  • Recruited 217 participants for a test battery.
  • Included bistable perception paradigms (binocular rivalry, bistable moving plaid).
  • Utilized a center-surround suppression paradigm to measure cortical inhibition.

Main Results:

  • Successfully replicated correlations between binocular rivalry and bistable moving plaid perception.
  • Found no correlation between center-surround suppression strength and percept durations for any bistable perception.
  • Mediation analysis indicated center-surround suppression does not mediate the correlation between binocular rivalry and bistable moving plaids.

Conclusions:

  • Cortical inhibition, as measured by center-surround suppression, does not explain the between-observer correlation in mean percept duration between binocular rivalry and bistable moving plaid perception.
  • The findings do not support the hypothesis that neural inhibition underlies these cross-paradigm correlations.