Dynamical criticality in the collective activity of a population of retinal neurons

Physical Review Letters
Thierry MoraOlivier Marre

Abstract

Recent experimental results based on multielectrode and imaging techniques have reinvigorated the idea that large neural networks operate near a critical point, between order and disorder. However, evidence for criticality has relied on the definition of arbitrary order parameters, or on models that do not address the dynamical nature of network activity. Here we introduce a novel approach to assess criticality that overcomes these limitations, while encompassing and generalizing previous criteria. We find a simple model to describe the global activity of large populations of ganglion cells in the rat retina, and show that their statistics are poised near a critical point. Taking into account the temporal dynamics of the activity greatly enhances the evidence for criticality, revealing it where previous methods would not. The approach is general and could be used in other biological networks.

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Citations

Sep 4, 2015·Proceedings of the National Academy of Sciences of the United States of America·Gašper TkačikWilliam Bialek
Mar 27, 2016·Current Opinion in Neurobiology·Elad Schneidman
Dec 8, 2017·Reports on Progress in Physics·William Bialek
Dec 8, 2017·Nature Communications·Stéphane DenyOlivier Marre
Aug 28, 2018·Neural Computation·Ulisse FerrariThierry Mora
Sep 20, 2017·PLoS Computational Biology·Jan Humplik, Gašper Tkačik
Dec 24, 2018·Neural Computation·Christophe GardellaThierry Mora
Jan 31, 2018·The European Physical Journal. E, Soft Matter·Vaibhav Wasnik
Oct 12, 2017·PLoS Computational Biology·Mark L Ioffe, Michael J Berry
Oct 4, 2017·PLoS Computational Biology·Marcel NonnenmacherJakob H Macke
Jul 18, 2018·Physical Review. E·Lisandro Montangie, Fernando Montani
Aug 17, 2020·Physical Review. E·Nastaran LotfiPedro V Carelli
Aug 18, 2018·Physical Review Letters·Brandon Munn, Pulin Gong
Jun 14, 2019·Proceedings of the National Academy of Sciences of the United States of America·David DahmenMoritz Helias
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Feb 21, 2021·Nature Communications·Miguel AguileraHideaki Shimazaki

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