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Updated: Sep 29, 2026

Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging
Published on: March 14, 2025
A neural correlate of consciousness related to repression
Howard Shevrin1, Jess H Ghannam, Benjamin Libet
1Department of Psychiatry, University of Michigan Medical Center, Ann Arbor, Michigan 48105, USA. shevrin@umich.edu
Abstract:
In previous research Libet (1966) discovered that a critical time period for neural activation is necessary in order for a stimulus to become conscious. This necessary time period varies from subject to subject. In this current study, six subjects for whom the time for neural activation of consciousness had been previously determined were administered a battery of psychological tests on the basis of which ratings were made of degree of repressiveness. As hypothesized, repressive subjects had a longer critical time period for neural activation of consciousness, suggesting the possibility that this neurophysiological time factor is a necessary condition for the development of repression.
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