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  • Title: Mirth and laughter elicited during brain stimulation.
    Author: Fernández-Baca Vaca G, Lüders HO, Basha MM, Miller JP.
    Journal: Epileptic Disord; 2011 Dec; 13(4):435-40. PubMed ID: 22258050.
    Abstract:
    There are few reports of laughter and/or mirth evoked by electrical stimulation of the brain. In this study, we present a patient with intractable epilepsy in whom mirth and laughter was consistently produced during stimulation of the left inferior frontal gyrus (opercular part) using stereotactically placed depth electrodes. A review of the literature shows that cortical sites that produce mirth when stimulated are located in the dominant hemisphere close to language areas or cortical negative motor areas.
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