Synaptic plasticity and neuronal refractory time cause scaling behaviour of neuronal avalanches.

ABSTRACT: Neuronal avalanches measured in vitro and in vivo in different cortical networks consistently exhibit power law behaviour for the size and duration distributions with exponents typical for a mean field self-organized branching process. These exponents are also recovered in neuronal network simulations implementing various neuronal dynamics on different network topologies. They can therefore be considered a very robust feature of spontaneous neuronal activity. Interestingly, this scaling behaviour is also observed on regular lattices in finite dimensions, which raises the question about the origin of the mean field behavior observed experimentally. In this study we provide an answer to this open question by investigating the effect of activity dependent plasticity in combination with the ne

SUBMITTER: Michiels van Kessenich L 

PROVIDER: S-EPMC4989193 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature