Self-Regulated Dynamical Criticality in Human ECoG

Frontiers in Integrative Neuroscience
Guillermo SoloveyGuillermo A Cecchi

Abstract

Mounting experimental and theoretical results indicate that neural systems are poised near a critical state. In human subjects, however, most evidence comes from functional MRI studies, an indirect measurement of neuronal activity with poor temporal resolution. Electrocorticography (ECoG) provides a unique window into human brain activity: each electrode records, with high temporal resolution, the activity resulting from the sum of the local field potentials of ∼10(5) neurons. We show that the human brain ECoG recordings display features of self-regulated dynamical criticality: dynamical modes of activation drift around the critical stability threshold, moving in and out of the unstable region and equilibrating the global dynamical state at a very fast time scale. Moreover, the analysis also reveals differences between the resting state and a motor task, associated with increased stability of a fraction of the dynamical modes.

Associated Proceedings Papers

Jul 10, 2017·Arian AshourvanGeorge J. Pappas
Sep 4, 2019·A. L. RiveraJ. C. Toledo-Roy

References

Apr 6, 2016·Frontiers in Neural Circuits·Tiago L RibeiroMauro Copelli
Feb 13, 2013·Proceedings of the National Academy of Sciences of the United States of America·J Matias PalvaSatu Palva
Apr 12, 2014·Frontiers in Neural Circuits·Leandro M AlonsoMarcelo O Magnasco
May 25, 2016·Neuroscience and Biobehavioral Reviews·D P CalderonD Pfaff
May 5, 2017·PloS One·Leila FakhraeiWoodrow L Shew
Dec 8, 2017·Reports on Progress in Physics·William Bialek
Jun 21, 2018·Journal of Neural Engineering·Mackenna HillCynthia A Chestek
Jan 19, 2019·Proceedings of the National Academy of Sciences of the United States of America·Antonio C CostaGreg J Stephens
Aug 9, 2013·Journal of Neurophysiology·Greg J StephensUri Hasson
Mar 13, 2015·Physical Review Letters·Thierry MoraOlivier Marre
Jun 14, 2019·Proceedings of the National Academy of Sciences of the United States of America·David DahmenMoritz Helias
Jan 24, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Rashid V Williams-GarcíaGerardo Ortiz

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