Reliable recall of spontaneous activity patterns in cortical networks.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
Olivier MarreYves Frégnac

Abstract

Irregular ongoing activity in cortical networks is often modeled as arising from recurrent connectivity. Yet it remains unclear to what extent its presence corrupts sensory signal transmission and network computational capabilities. In a recurrent cortical-like network, we have determined the activity patterns that are better transmitted and self-sustained by the network. We show that reproducible spiking and subthreshold dynamics can be triggered if the statistics of the imposed external drive are consistent with patterns previously seen in the ongoing activity. A subset of neurons in the network, constrained to replay temporal pattern segments extracted from the recorded ongoing activity of the same network, reliably drives the remaining, free-running neurons to call the rest of the pattern. Comparison with surrogate Poisson patterns indicates that the efficiency of the recall and completion process depends on the similarity between the statistical properties of the input with previous ongoing activity The reliability of evoked dynamics in recurrent networks is thus dependent on the stimulus used, and we propose that the similarity between spontaneous and evoked activity in sensory cortical areas could be a signature of effic...Continue Reading

Citations

Sep 26, 2009·PLoS Computational Biology·Sami El BoustaniYves Frégnac
Oct 15, 2011·PLoS Computational Biology·Demian Battaglia, David Hansel
Mar 19, 2013·PLoS Computational Biology·Tomoki Kurikawa, Kunihiko Kaneko
Jan 12, 2011·Journal of Computational Neuroscience·Pierre YgerYves Frégnac
Mar 24, 2010·Current Opinion in Neurobiology·Henry J Alitto, Yang Dan
Mar 27, 2016·Current Opinion in Neurobiology·Elad Schneidman
Mar 25, 2014·Current Opinion in Neurobiology·Fred WolfAndreas Neef
Oct 18, 2014·Frontiers in Computational Neuroscience·Guillaume LajoieEric Shea-Brown
Aug 16, 2014·Neural Networks : the Official Journal of the International Neural Network Society·Tomoki Kurikawa, Kunihiko Kaneko
Sep 13, 2016·PloS One·Tomoki Kurikawa, Kunihiko Kaneko
Dec 16, 2016·PLoS Computational Biology·Guillaume LajoieEric Shea-Brown
Jun 30, 2019·Science Advances·Wesley ClawsonPascale P Quilichini
Aug 24, 2017·Scientific Reports·Valentina PasqualeMichela Chiappalone
Feb 23, 2021·Network Neuroscience·Nicola PedreschiDemian Battaglia

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