Simple spice-neuron model

In the present work we discuss the possibility to apply the equivalent circuit approach for modelling of the single neuron activity. The proposed approach is based on the using of the SPICE simulation of the well-known FitzHugh-Nagumo numerical model that consists from two first order ordinary differential equation. The SPICE model for FitzHugh-Nagumo neuron activity model has been developed in the form of two coupled closed networks that contains the capacitors and controlled current sources. So as result the right sides of the model differential equations are directly corresponds to voltage controlled current sources in the equivalent circuit. The simulation of developed equivalent circuit was carrying out in the LTspice environment. At The simulation procedure we change the control parameter z of the FitzHugh-Nagumo model and obtain the dynamical regimes as for known results for neuron activity for single input excitation and non-interrupted burst oscillation.