Event Abstract Back to Event EEG functional connectivity is associated with the valence of experienced affective states Miroslaw Wyczesany1* and Magdalena A. Ferdek1, 2 1 Jagiellonian Universiy, Poland 2 Radboud University, The Netherlands The question of how the brain "produces" emotional experience remains one of the most important problems in neuroscience. The present study attempts to investigate the cortical networks involved in experience of the valence of affective state using an effective connectivity approach based on spontaneous EEG activity. It was recorded during mental imagery tasks related to emotionally valenced events or self-related feelings in three different conditions: positive, neutral and negative. The efficiency of such mood induction was later verified using post-experimental survey. The information flow rate and direction were estimated by means of Directed Transfer Function (DTF), a multivariate method based on Granger Causality principles. Beta frequency band (13-30Hz) was analyzed, which is suggested to cover the putative range for neural network task-dependent long-range communication. The results confirmed three regions as main network hubs, where the information outflow changed specifically with emotional valence: the orbitofrontal cortex, and the right posterior and right temporal area. The relationships between valence and connectivity rate revealed distinct patterns for each of these sources. Other receiving nodes which were also affected by the experienced valence were: the left dorsolateral prefrontal cortex, the left temporal, and the left posterior area. The role of the main network nodes in synchronizing the cortical affective network as well as in mediating different aspects of emotional states are discussed. Keywords: connectivity, EEG, Valence, imagery, directed transfer function, emotional state Conference: XII International Conference on Cognitive Neuroscience (ICON-XII), Brisbane, Queensland, Australia, 27 Jul - 31 Jul, 2014. Presentation Type: Poster Topic: Emotional and Social Processes Citation: Wyczesany M and Ferdek MA (2015). EEG functional connectivity is associated with the valence of experienced affective states. Conference Abstract: XII International Conference on Cognitive Neuroscience (ICON-XII). doi: 10.3389/conf.fnhum.2015.217.00344 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 19 Feb 2015; Published Online: 24 Apr 2015. * Correspondence: Dr. Miroslaw Wyczesany, Jagiellonian Universiy, Krakow, Poland, miroslaw.wyczesany@uj.edu.pl Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Miroslaw Wyczesany Magdalena A Ferdek Google Miroslaw Wyczesany Magdalena A Ferdek Google Scholar Miroslaw Wyczesany Magdalena A Ferdek PubMed Miroslaw Wyczesany Magdalena A Ferdek Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.