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bioRxiv · 10.1101/2023.08.28.555064

A robust balancing mechanism for spiking neural networks

Politi, A.·Torcini, A.
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Abstract

Dynamical balance of excitation and inhibition is usually invoked to explain the irregular low firing activity observed in the cortex. We propose a robust nonlinear balancing mechanism for a random network of spiking neurons, in absence of strong external currents. The mechanism exploits the plasticity of excitatory-excitatory synapses induced by short-term depression. A simple self-consistent analysis accompanied by direct simulations shows the emergence and stability of a balanced asynchronous state in the thermodynamic limit. This regime is essentially fluctuation driven and characterized by highly irregular spiking dynamics of all neurons.

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Politi, A., Torcini, A.. 2023-08-29. A robust balancing mechanism for spiking neural networks. https://doi.org/10.1101/2023.08.28.555064

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