Coupling of Action-Perception Brain Networks during Musical Pulse Processing : Evidence from Region-of-Interest-Based Independent Component Analysis
Burunat, I., Tsatsishvili, V., Brattico, E., & Toiviainen, P. (2017). Coupling of Action-Perception Brain Networks during Musical Pulse Processing : Evidence from Region-of-Interest-Based Independent Component Analysis. Frontiers in Human Neuroscience, 11, Article 230. https://doi.org/10.3389/fnhum.2017.00230
Published inFrontiers in Human Neuroscience
© 2017 Burunat, Tsatsishvili, Brattico and Toiviainen. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY).
Our sense of rhythm relies on orchestrated activity of several cerebral and cerebellar structures. Although functional connectivity studies have advanced our understanding of rhythm perception, this phenomenon has not been sufficiently studied as a function of musical training and beyond the General Linear Model (GLM) approach. Here, we studied pulse clarity processing during naturalistic music listening using a data-driven approach (independent component analysis; ICA). Participants’ (18 musicians and 18 controls) functional magnetic resonance imaging (fMRI) responses were acquired while listening to music. A targeted region of interest (ROI) related to pulse clarity processing was defined, comprising auditory, somatomotor, basal ganglia, and cerebellar areas. The ICA decomposition was performed under different model orders, i.e., under a varying number of assumed independent sources, to avoid relying on prior model order assumptions. The components best predicted by a measure of the pulse clarity of the music, extracted computationally from the musical stimulus, were identified. Their corresponding spatial maps uncovered a network of auditory (perception) and motor (action) areas in an excitatory-inhibitory relationship at lower model orders, while mainly constrained to the auditory areas at higher model orders. Results revealed (a) a strengthened functional integration of action-perception networks associated with pulse clarity perception hidden from GLM analyses, and (b) group differences between musicians and non-musicians in pulse clarity processing, suggesting lifelong musical training as an important factor that may influence beat processing. ...
PublisherFrontiers Research Foundation
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Related funder(s)Academy of Finland
Funding program(s)Research post as Academy Professor, AoF
Additional information about fundingThis work was financially supported by the Academy of Finland (project numbers 272250 and 274037), and by the Danish National Research Foundation (DNRF 117).
Except where otherwise noted, this item's license is described as © 2017 Burunat, Tsatsishvili, Brattico and Toiviainen. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY).
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