Unifying turbulent dynamics framework distinguishes different brain states

  • Recently, significant advances have been made by identifying the levels of synchronicity of the underlying dynamics of a given brain state. This research has demonstrated that unconscious dynamics tend to be more synchronous than those found in conscious states, which are more asynchronous. Here we go beyond this dichotomy to demonstrate that the different brain states are always underpinned by spatiotemporal chaos but with dissociable turbulent dynamics. We investigated human neuroimaging data from different brain states (resting state, meditation, deep sleep, and disorders of consciousness after coma) and were able to distinguish between them using complementary model-free and model-based measures of turbulent information transmission. Our model-free approach used recent advances describing a measure of information cascade across spatial scales using tools from turbulence theory. Complementarily, our model-based approach used exhaustive in silico perturbations of whole-brain models fitted to the empirical neuroimaging data, which allowed us to study the information encoding capabilities of the brain states. Overall, the current framework demonstrates that different levels of turbulent dynamics are fundamental for describing and differentiating between brain states.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Anira EscrichsORCiD, Yonatan Sanz PerlORCiD, Carme UribeORCiD, Estela CàmaraORCiDGND, Basak Türker, Nadya PyatigorskayaORCiD, Ane López-GonzálezORCiD, Carla PallaviciniORCiD, Rajanikant PandaORCiD, Jitka AnnenORCiD, Olivia GrosseriesORCiDGND, Steven LaureysGND, Lionel NaccacheORCiDGND, Jacobo D. SittORCiD, Helmut LaufsORCiDGND, Enzo TagliazucchiORCiDGND, Morten L. KringelbachORCiDGND, Gustavo DecoORCiDGND
Parent Title (English):bioRxiv
Document Type:Preprint
Date of Publication (online):2021/10/16
Date of first Publication:2021/10/16
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/05/03
Page Number:36
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Licence (German):License LogoCreative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International