Criticality in the brain: A synthesis of neurobiology, models and cognition

Luca Cocchi, Leonardo L. Gollo, Andrew Zalesky, Michael Breakspear

Research output: Contribution to journalReview ArticleResearchpeer-review

73 Citations (Scopus)

Abstract

Cognitive function requires the coordination of neural activity across many scales, from neurons and circuits to large-scale networks. As such, it is unlikely that an explanatory framework focused upon any single scale will yield a comprehensive theory of brain activity and cognitive function. Modelling and analysis methods for neuroscience should aim to accommodate multiscale phenomena. Emerging research now suggests that multi-scale processes in the brain arise from so-called critical phenomena that occur very broadly in the natural world. Criticality arises in complex systems perched between order and disorder, and is marked by fluctuations that do not have any privileged spatial or temporal scale. We review the core nature of criticality, the evidence supporting its role in neural systems and its explanatory potential in brain health and disease.

Original languageEnglish
Pages (from-to)132-152
Number of pages21
JournalProgress in Neurobiology
Volume158
DOIs
Publication statusPublished - Nov 2017
Externally publishedYes

Keywords

  • Bifurcations
  • Cognition
  • Dynamics
  • Metastability
  • Multistability
  • Power-law

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