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  Playing at the edge of criticality: Expanded whole-brain repertoire of connectome-harmonics

Atasoy, S., Deco, G., & Kringelbach, M. L. (2019). Playing at the edge of criticality: Expanded whole-brain repertoire of connectome-harmonics. In N. Tomen, J. M. Herrmann, & U. Ernst (Eds.), The Functional Role of Critical Dynamics in Neural Systems: Springer Series on Bio- and Neurosystems (pp. 27-45). Cham: Springer International Publishing. doi:10.1007/978-3-030-20965-0_2.

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 Creators:
Atasoy, Selen1, 2, Author
Deco, Gustavo3, 4, 5, 6, Author              
Kringelbach, Morten L.1, 2, Author
Affiliations:
1Department of Psychiatry, University of Oxford, United Kingdom, ou_persistent22              
2Center for Music in the Brain, Aarhus University, Denmark, ou_persistent22              
3Center for Brain and Cognition, University Pompeu Fabra, Barcelona, Spain, ou_persistent22              
4Catalan Institution for Research and Advanced Studies (ICREA), University Pompeu Fabra, Barcelona, Spain, ou_persistent22              
5Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
6School of Psychological Sciences, Monash University, Melbourne, Australia, ou_persistent22              

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 Abstract: In order for us to survive, our behaviour has to be perched somewhere between stability and flexibility, or between exploitation and exploration of available resources. This requires the underlying spatiotemporal brain dynamics to be delicately balanced between order and disorder, drawing upon a large repertoire of available brain states. Beyond survival, in order to thrive the brain has to be sufficiently flexible to be able to seek novel trajectories and expand the dynamical repertoire. Here we propose that a key ingredient could be play, the active exploration of novelty beyond exploiting existing potentially scarce resources. Using a novel analysis method called ‘connectome harmonics’ we not only demonstrate that brain activity resides close to criticality—at the delicate balance between order (stability) and disorder (flexibility)—but this whole-brain criticality is also intrinsically linked to oscillatory brain dynamics. We show that compared to wakefulness, other conscious states are related to different connectome-harmonic repertoires and differ in their proximity to criticality, where the critical regime may enhance the ability to flexibly seek new brain states. In particular, we propose that these brain dynamics may underlie the creative process found in play and improvisation, and as such may shed new light on discovering how the brain optimizes the balance between exploitation and exploration needed for behavioural flexibility.

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Language(s): eng - English
 Dates: 2019-07-242019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1007/978-3-030-20965-0_2
 Degree: -

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Title: The Functional Role of Critical Dynamics in Neural Systems: Springer Series on Bio- and Neurosystems
Source Genre: Book
 Creator(s):
Tomen, Nergis1, Editor
Herrmann, J. Michael1, Editor
Ernst, Udo1, Editor
Affiliations:
1 External Organizations, ou_persistent22            
Publ. Info: Cham : Springer International Publishing
Pages: - Volume / Issue: 11 Sequence Number: - Start / End Page: 27 - 45 Identifier: ISSN: 2520-8535
ISSN: 2520-8543
ISBN: 978-3-030-20964-3
ISBN: 978-3-030-20965-0