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Bidomain formulation for modeling brain activity propagation

The paper presents a mathematical approach to the modeling of continuous active neural tissue together with a nonlinear discrete cell model. The main focus is put on the numerical formulation adapted from the bidomain model for the human heart. The bidomain model uses two scalar electrical potentials: intra- and extracellular to simulate propagation of the action potential from the spiking neurons in the white and gray matter tissues. The evoked potentials are forced by applying artificial stimulation current through the neuron membrane. The authors introduced new values of material parameters and neuron models to adequately simulate the brain activity