Event Abstract Back to Event Correlations between negative-induced cerebral dynamics and idiopathic intellectual disability: an EEG study Julie Palix1*, Fabienne Giuliani2, Elodie Jombart2, Sophie Pernier2, Cherine Fahim1, Adham Mancini-Marïe3 and Catherine Brandner1 1 LERB, University of Lausanne, Switzerland 2 Dpt of Psychiatry, CHUV, Switzerland 3 Dpt of Psychiatry, HUG, Switzerland Intellectual disability has long been associated with deficits in socio-emotional processing. However, studies investigating brain dynamics of maladaptive socio-emotional skills associated with intellectual disability are scarce. Here, we compared differences in brain activity between low intelligence quotient (I.Q.< 75, n = 13) and normal controls (n = 15) while evaluating their subjective emotions. Positive (P) and negative (N) valenced pictures were presented one at a time to participants of both groups, at a rate of ¾. The task required that each participant evaluate their subjective emotion and press a predefined push-button when done, alternatively P and N. Electroencephalographic (EEG) signals were continuously recorded, and the 1000ms time window following each picture was analyzed offline for power in frequency domain. Alpha low (8-10Hz) and upper (10-13Hz) frequency bands were then compared for both groups and for both P and N emotions in 12 distributed scalp electrodes. The qualitative evaluation of emotions was similar between both groups, with constant longer reaction times for the low IQ participants. The EEG signal comparison shows marked power decrease in upper alpha frequency range for N emotions in low intelligence group. Otherwise no significant difference was noticed between low and normal IQ. Main findings of the present study are (1) results do not support the hypothesis that impairment in developmental intelligence roots in maladaptive emotional processing; (2) the strong alpha power suppression during negative-induced emotions suggests the involvement of an extended neural network and more effortful inhibition processes than positive ones. We call for further studies with a larger sample. Keywords: EEG, emotion Conference: XI International Conference on Cognitive Neuroscience (ICON XI), Palma, Mallorca, Spain, 25 Sep - 29 Sep, 2011. Presentation Type: Poster Presentation Topic: Poster Sessions: Emotion, Motivation and the Social Brain Citation: Palix J, Giuliani F, Jombart E, Pernier S, Fahim C, Mancini-Marïe A and Brandner C (2011). Correlations between negative-induced cerebral dynamics and idiopathic intellectual disability: an EEG study. Conference Abstract: XI International Conference on Cognitive Neuroscience (ICON XI). doi: 10.3389/conf.fnhum.2011.207.00494 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: 22 Nov 2011; Published Online: 28 Nov 2011. * Correspondence: Dr. Julie Palix, LERB, University of Lausanne, Lausanne, Switzerland, julie.palix@chuv.ch 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 Julie Palix Fabienne Giuliani Elodie Jombart Sophie Pernier Cherine Fahim Adham Mancini-Marïe Catherine Brandner Google Julie Palix Fabienne Giuliani Elodie Jombart Sophie Pernier Cherine Fahim Adham Mancini-Marïe Catherine Brandner Google Scholar Julie Palix Fabienne Giuliani Elodie Jombart Sophie Pernier Cherine Fahim Adham Mancini-Marïe Catherine Brandner PubMed Julie Palix Fabienne Giuliani Elodie Jombart Sophie Pernier Cherine Fahim Adham Mancini-Marïe Catherine Brandner 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.