Event Abstract Back to Event Fast neural dynamics of a 'multiple demand' frontoparietal network for cognitive control Francisco Barcelo1, Álvaro Darriba1*, Javier Villacampa1, Rosa Martorell1, Marcelina Chamielec1 and Alejandro Gálvez1 1 University of the Balearic Islands, Spain Cognitive flexibility is critical for adaptive human behavior in complex societies with ever growing multitasking demands. Yet the fast neural dynamics of task-specific and domain-general mechanisms subserving mental flexibility are still ill defined. In this study, we recorded event-related potentials (ERPs) from 36 participants while they were intermittently cued to switch or repeat their perceptual categorization of Gabor gratings varying in color and thickness (Switch task), or else they performed two visually identical control tasks (NoGo and Oddball). Our task cueing paradigm was designed to examine proactive and reactive control modes during both cue-locked rule preparation and target-locked rule implementation stages. Unlike past studies, we addressed trial-by-trial dynamics of sensorimotor, contextual and episodic control operations ensuing task transition points. Both switch-specific (indexed by cue-locked P600 and a sustained target-locked positivity following task transitions) and domain-general mechanisms (indexed by cue- and target-locked P2 and P3 components) revealed fast recurrent modulations of neural activity within a common frontoparietal network. Topographic analyses of normalized brain responses revealed distinct split-second swings of activation across posterior and frontal scalp regions as a function of increasing cognitive demands and proactive vs. reactive control modes. Modulations of domain-general brain potentials paralleled predictions from information theoretic models (Koechlin & Summerfield, 2007) that envisage cognitive control as a series of temporarily ordered processing stages at various levels within a hierarchy of representations (e.g., sensory, contextual, episodic) in the brain. Our results also suggested distinct functional roles for the fast and recursive activations observed within the frontoparietal "multiple demand" system (Duncan, 2013) during the preparation and implementation stages of task switching. Acknowledgements: Study supported by grants from Fundació La Marató de TV3 (112710) (FB); and Fellowship financed by the European Social Fund (ESF) and the Govern de les Illes Balears (Conselleria d’Educació, Cultura i Universitats) (MC). Keywords: executive control, P300, Context updating, Task-set inertia, Task-set reconfiguration Conference: XII International Conference on Cognitive Neuroscience (ICON-XII), Brisbane, Queensland, Australia, 27 Jul - 31 Jul, 2014. Presentation Type: Poster Topic: Cognition and Executive Processes Citation: Barcelo F, Darriba Á, Villacampa J, Martorell R, Chamielec M and Gálvez A (2015). Fast neural dynamics of a 'multiple demand' frontoparietal network for cognitive control. Conference Abstract: XII International Conference on Cognitive Neuroscience (ICON-XII). doi: 10.3389/conf.fnhum.2015.217.00043 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. Álvaro Darriba, University of the Balearic Islands, Palma de Mallorca, Spain, alvaro.da.riba@gmail.com 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 Francisco Barcelo Álvaro Darriba Javier Villacampa Rosa Martorell Marcelina Chamielec Alejandro Gálvez Google Francisco Barcelo Álvaro Darriba Javier Villacampa Rosa Martorell Marcelina Chamielec Alejandro Gálvez Google Scholar Francisco Barcelo Álvaro Darriba Javier Villacampa Rosa Martorell Marcelina Chamielec Alejandro Gálvez PubMed Francisco Barcelo Álvaro Darriba Javier Villacampa Rosa Martorell Marcelina Chamielec Alejandro Gálvez 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.
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