Sleep-dependent memory consolidation and neurofeedback in insomnia - A long-term study

Abstract

Event Abstract Back to Event Sleep-dependent memory consolidation and neurofeedback in insomnia - A long-term study Manuel Schabus1, 2*, Hermann Griessenberger3, Dominik Heib3, Daniel Koerner3 and Kerstin Hoedlmoser2, 4 1 University of Salzburg, Department of Psychology, Austria 2 University of Salzburg, Centre for Cognitive Neuroscience Salzburg (CCNS), Austria 3 University of Salzburg, Austria 4 University of Salzburg, Department of Psychology, Austria The suggested functions of sleep are manifold, involving adaptive strategies, physical recovery and more recently "offline" information reprocessing. Here we now present a study in which the same type of declarative (word-pair learning) and procedural (finger-tapping) task was conducted four times (weeks apart) in the evening with subsequent interference manipulation the next morning in insomnia patients. In addition 36 healthy controls spend 3 nights in the laboratory to test for (healthy) sleep-dependent memory consolidation. In addition, 12-15Hz (sensorimotor rhythm; SMR) as well as placebo "neurofeedback" was conducted in the insomnia group. With respect to the susceptibility to interference it becomes evident that interference affects the declarative memory domain much more than the procedural one. Forgetting from initial evening learning to a delayed recall after a week (as well as after interference) is also found more pronounced in insomnia patients than healthy controls. Analyses of the sleep EEG and sleep spindles reveal a trait-like relationship between fast spindle activity (SpA) and (i) the initial learning levels in the declarative memory as well as (ii) an association with the declarative overnight memory change. Last but not least our double-blind neurofeedback protocol indicates that patients suffering from insomnia are able to enhance SMR-power and (fast) sleep spindles over the 12 SMR training sessions. Yet direct benefits for sleep quality or memory consolidation were not observed, rather the subjective sleep complaint decreased unspecifically across both conditions. Current results indicate that healthy as well as insomnia patients do show associations of (overnight) memory performance and (fast) sleep spindle activity and interestingly are even able to increase these spindles by means of instrumental 12-15Hz EEG conditioning. Research was supported by FWF research grants (P-21154-B18; I-934) from the Austrian Science Foundation. Keywords: Memory, Neurofeedback, Sleep, insomnia, consolidation Conference: XII International Conference on Cognitive Neuroscience (ICON-XII), Brisbane, Queensland, Australia, 27 Jul - 31 Jul, 2014. Presentation Type: Poster Topic: Memory and Learning Citation: Schabus M, Griessenberger H, Heib D, Koerner D and Hoedlmoser K (2015). Sleep-dependent memory consolidation and neurofeedback in insomnia - A long-term study. Conference Abstract: XII International Conference on Cognitive Neuroscience (ICON-XII). doi: 10.3389/conf.fnhum.2015.217.00365 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. Manuel Schabus, University of Salzburg, Department of Psychology, Salzburg, Austria, manuel.schabus@sbg.ac.at 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 Manuel Schabus Hermann Griessenberger Dominik Heib Daniel Koerner Kerstin Hoedlmoser Google Manuel Schabus Hermann Griessenberger Dominik Heib Daniel Koerner Kerstin Hoedlmoser Google Scholar Manuel Schabus Hermann Griessenberger Dominik Heib Daniel Koerner Kerstin Hoedlmoser PubMed Manuel Schabus Hermann Griessenberger Dominik Heib Daniel Koerner Kerstin Hoedlmoser 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.