The Fitzhugh-Nagumo model is a simplified mathematical framework used to describe the excitability of neurons and other biological systems through a system of ordinary differential equations. It is derived from the Hodgkin-Huxley model and captures the essential features of action potentials in neurons, such as excitability, recovery, and oscillatory behavior. The model reduces the complexity of the original equations while still providing insights into the dynamics of neuronal activity.
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