Increasing Detectability of Cross Frequency Coupling

Abstract

Event Abstract Back to Event Increasing Detectability of Cross Frequency Coupling Mojtaba Chehelcheraghi1*, Chie Nakatani1 and Cees Van Leeuwen1, 2 1 KU Leuven, Mind and Brain Research Unit of the Department of Experimental Psychology, Belgium 2 TU Kaiserslautern, Center for Cognitive Science, Germany Oscillatory properties of brain signals, for instance gamma and theta band EEG, could show various relationships, such as coupling between phase and amplitude. Coupling between frequencies fm and fn produces modulatory components, e.g., fn-m and fn+m. These components give rise to a dilemma when using Cross-Frequency Coupling (CFC) measures to describe the relationship between the signals: These measures rely on band-pass filtering of the two signals, e.g. using the Complex Morlet Wavelet, each around a single specific center frequency. Using a narrow band excludes the modulatory components from the CFC; a wide band succeeds in including them but results in weak detectability. Moreover, it does not allow us to measure couplings that involve frequency modulation, such as phase-frequency coupling. To get around this dilemma, we propose a method that involves-using three identical narrowband filters with center frequencies located on fn-m, fn and fn+m. We compare the performance of this method with four well accepted CFC detection methods, by applying them to artificial EEG-like signals. Where the other methods fail to detect CFC, the proposed method is shown to be successful. Figure 1 Keywords: Cross Frequencu Coupling, modulatory component, Phase amplitude coupling, phase frequency coupling, wavelet analysis Conference: Second Belgian Neuroinformatics Congress, Leuven, Belgium, 4 Dec - 4 Dec, 2015. Presentation Type: Poster Presentation Topic: Methods and Modeling Citation: Chehelcheraghi M, Nakatani C and Van Leeuwen C (2015). Increasing Detectability of Cross Frequency Coupling. Front. Neuroinform. Conference Abstract: Second Belgian Neuroinformatics Congress. doi: 10.3389/conf.fninf.2015.19.00024 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: 13 Nov 2015; Published Online: 17 Nov 2015. * Correspondence: Mr. Mojtaba Chehelcheraghi, KU Leuven, Mind and Brain Research Unit of the Department of Experimental Psychology, Leuven, Belgium, mojtaba.chehelcheraghi@kuleuven.be 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 Mojtaba Chehelcheraghi Chie Nakatani Cees Van Leeuwen Google Mojtaba Chehelcheraghi Chie Nakatani Cees Van Leeuwen Google Scholar Mojtaba Chehelcheraghi Chie Nakatani Cees Van Leeuwen PubMed Mojtaba Chehelcheraghi Chie Nakatani Cees Van Leeuwen 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.