Hemispheric dorsolateral prefrontal cortex lateralization in the regulation of empathy for pain

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Liste des auteurs: Rego GG, Lapenta OM, Marques LM, Costa TL, Leite J, Carvalho S, Goncalves OF, Brunoni AR, Fregni F, Boggio PS
Editeur: Elsevier: 12 months
Année de publication: 2015
Journal: Neuroscience Letters (0304-3940)
Numéro du volume: 594
Page d'accueil: 12
Dernière page: 16
Nombre de pages: 5
ISSN: 0304-3940
Languages: Anglais-Royaume-Uni (EN-GB)


Résumé

The dorsolateral prefrontal cortex (DLPFC) is involved in the cognitive appraisal and modulation of the pain experience. In this sham-controlled study, with healthy volunteers, we used bi-hemispheric transcranial direct current stimulation (tDCS) over the DLPFC to assess emotional reactions elicited by pain observation. Left-cathodal/right-anodal tDCS decreased valence and arousal evaluations compared to other tDCS conditions. Compared to sham condition, both left-cathodal/right-anodal and left-anodal/right-cathodal tDCS decreased hostility, sadness and self-pain perception. These decreased sensations after both active tDCS suggest a common role for left and right DLPFC in personal distress modulation. However, the differences in arousal and valence evaluations point to distinct roles of lateralized DLPFC in cognitive empathy, probably through distinct emotion regulation mechanisms. (C) 2015 Elsevier Ireland Ltd. All rights reserved.


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Dernière mise à jour le 2019-23-08 à 11:15