Information Capacity and Transmission Are Maximized in Balanced Cortical Networks with Neuronal Avalanches

By Woodrow L. Shew, Hongdian Yang, Shan Yu, Rajarshi Roy, Dietmar Plenz. Journal of Neuroscience, 2010

565 citations recorded by the source corpus.

The repertoire of neural activity patterns that a cortical network can produce constrains the ability of the network to transfer and process information. Here, we measured activity patterns obtained from multisite local field potential recordings in cortex cultures, urethane-anesthetized rats, and awake macaque monkeys. First, we quantified the information capacity of the pattern repertoire of ongoing and stimulus-evoked activity using Shannon entropy. Next, we quantified the efficacy of information transmission between stimulus and response using mutual information. By systematically changing the ratio of excitation/inhibition (E/I) in vitro and in a network model, we discovered that both information capacity and information transmission are maximized at a particular intermediate E/I, at which ongoing activity emerges as neuronal avalanches. Next, we used our in vitro and model results to correctly predict in vivo information capacity and interactions between neuronal groups during ongoing activity. Close agreement between our experiments and model suggest that neuronal avalanches and peak information capacity arise because of criticality and are general properties of cortical networks with balanced E/I.

Subfields: Cellular and Molecular Neuroscience, Cognitive Neuroscience

View Paper: https://www.semanticscholar.org/paper/85e73529b4ca92b5c9c8b9e4a5b7e522b73cd787

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In Cellular and Molecular Neuroscience

  1. Michael Breakspear
  2. Karl J. Friston
  3. Dante R. Chialvo
  4. Nicholas M. Timme
  5. Andrew Zalesky
  6. Leonardo L. Gollo
  7. Luca Cocchi
  8. Enzo Tagliazucchi

In Cognitive Neuroscience

  1. Michael Breakspear
  2. Olaf Sporns
  3. Karl J. Friston
  4. Andrew Zalesky
  5. Luca Cocchi
  6. Carlos F. H. Neves
  7. Enzo Tagliazucchi
  8. Dante R. Chialvo

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