Emergent complex neural dynamics

By Dante R. Chialvo. 2010

1,127 citations recorded by the source corpus.

Is the brain on the edge of criticality? Understanding the inner workings of the brain is a task made difficult by the number of elements involved: a hundred billion neurons and a hundred trillion synapses. Viewing the brain in terms of collective dynamics is one approach now yielding some insight.

Subfields: Cognitive Neuroscience, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/044a8488cfab5a7c10955a4faeaf1048028f7b65

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In Cognitive Neuroscience

In Statistical and Nonlinear Physics

Citations in the corpus

Altered Structural Brain Connectivity in Healthy Carriers of the Autism Risk Gene, CNTNAP2 (2011, neutral): “The full tensor was also highly heritable, so long as the meaning of heritability was appropriately redeﬁned using a Lie group metric to measure tensor differences (Lee et al., 2009b, 2010).”
Griffiths phases and the stretching of criticality in brain networks (2013, background): “The criticality hypothesis [8, 10, 14] states that biological systems can perform the complex computations that they require to survive only by operating at the ”edge of chaos” (or critical) i.”
Criticality in the brain: A synthesis of neurobiology, models and cognition. (2017, background): “…et al., 1992; Priesemann et al., 2014; Scott et al., 2014) on the background of an existing body of reviews and syntheses (Beggs and Timme, 2012; Chialvo, 2010; Deco and Jirsa, 2012; Boonstra et al., 2013; Hesse and Gross, 2014; Kelso et al., 1992; Plenz and Thiagarajan, 2007; Priesemann et…”
Consciousness as a phenomenon in the operational architectonics of brain organization: Criticality and self-organization considerations (2013, background): “Detailed analysis of EEG intermittency has shown that scale-free brain activity, which comprises a significant portion of the spontaneous electrical field potentials, contains a rich temporal organization previously ignored as background noise dynamics [2,199].”
Criticality in Large-Scale Brain fMRI Dynamics Unveiled by a Novel Point Process Analysis (2012, methodology): “with sizes up to 103 and have no preferred scale, a behavior very similar to that of neuronal avalanches described previously in smaller scales (Beggs and Plenz, 2003; Petermann et al., 2009; Chialvo, 2010).”
Being Critical of Criticality in the Brain (2012, background): “just communication that would be optimized at the critical point (Beggs and Plenz, 2003; Bertschinger and Natschlager, 2004; Maass et al., 2004; Ramo et al., 2007; Tanaka et al., 2009; Chialvo, 2010; Shew et al., 2011).”
Functional connectivity dynamically evolves on multiple time-scales over a static structural connectome: Models and mechanisms (2017, background): “Systems operating at criticality are the most responsive to perturbations (Bak and Paczuski, 1995, Beggs, 2008, Chialvo, 2010), so we can hypothesize that being in this regime at rest allows the brain to rapidly switch to a function-specific state in response to an internal or external trigger.”
The Metastable Brain (2014, neutral): “This is in agreement with the hypothesis that the brain realizes its complexity by living between order and disorder (Chialvo, 2010; see also Atlan, 1979), where it can realize its dual tendencies for integration and segregation (Kelso, 1995; Kelso and Tognoli, 2007; Tononi et al., 1994).”
The role of the posterior cingulate cortex in cognition and disease. (2014, background): “This work provides evidence that the PCC integrates the consequences of behaviour over time, and provides a signal for strategic changes in behaviour when the consequences of previous actions are suboptimal (Hayden et al., 2008; Pearson et al., 2009).”
REBUS and the Anarchic Brain: Toward a Unified Model of the Brain Action of Psychedelics (2019, background): “Results 13 The “ critical ” here refers to a “ critical point ” in a phase transition between order and disorder in which interesting emergent phenomena such as critical slowing become evident; Chialvo (2010).”