• Conscious Cogn · Sep 2013

    Conscious and unconscious face recognition is improved by high-frequency rTMS on pre-motor cortex.

    • Michela Balconi and Adriana Bortolotti.
    • Research Unit in Neuropsychology of Language, Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy. Electronic address: michela.balconi@unicatt.it.
    • Conscious Cogn. 2013 Sep 1;22(3):771-8.

    AbstractSimulation process and mirroring mechanism appear to be necessary to the recognition of emotional facial expressions. Prefrontal areas were found to support this simulation mechanism. The present research analyzed the role of premotor area in processing emotional faces with different valence (positive vs. negative faces), considering both conscious and unconscious pathways. High-frequency rTMS (10 Hz) stimulation was applied to prefrontal area to induce an activation response when overt (conscious) and covert (unconscious) processing was implicated. Twenty-two subjects were asked to detect emotion/no emotion (anger, fear, happiness, neutral). Error rates (ERs) and response times (RTs) were considered in response to the experimental conditions. ERs and RTs decreased in case of premotor brain activation, specifically in response to fear, for both conscious and unconscious condition. The present results highlight the role of the premotor system for facial expression processing, supporting the existence of two analogous mechanisms for conscious and unconscious condition.Copyright © 2013 Elsevier Inc. All rights reserved.

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