Prefrontal Cortex and Consciousness: Beware of the Signals

Published on March 11, 2020

During binocular rivalry (BR), incongruent, unchanged visual stimulation induces intrinsically generated transitions in conscious content. Due to this astonishing property, BR is commonly combined with functional magnetic resonance imaging (fMRI) or single neuron recordings to identify the neural correlates of consciousness (NCCs); namely, brain activity reflecting conscious contents and spontaneous transitions between them. No-report BR versions, where the perceived stimulus is decoded from objective markers like reflexive eye movements instead of active behavioral reports, can be used to discard activity related to motor and postperceptual processes that might contaminate the pure NCC.

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