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. 2017 Nov 21;40(11):101.
doi: 10.1140/epje/i2017-11590-8.

Neuronal avalanches: Where temporal complexity and criticality meet

Affiliations

Neuronal avalanches: Where temporal complexity and criticality meet

Mohammad Dehghani-Habibabadi et al. Eur Phys J E Soft Matter. .

Abstract

The model of the current paper is an extension of a previous publication, wherein we have used the leaky integrate-and-fire model on a regular lattice with periodic boundary conditions, and introduced the temporal complexity as a genuine signature of criticality. In that work, the power-law distribution of neural avalanches was a manifestation of supercriticality rather than criticality. Here, however, we show that the continuous solution of the model and replacing the stochastic noise with a Gaussian zero-mean noise leads to the coincidence of power-law display of temporal complexity, and spatiotemporal patterns of neural avalanches at the critical point. We conclude that the source of inconsistency may be a numerical artifact originated by the discrete description of the model which may imply a slow numerical convergence of the avalanche distribution compared to temporal complexity.

Keywords: Living systems: Structure and Function.

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