Fig. 2
From: Modeling Focal Epileptic Activity in the Wilson–Cowan Model with Depolarization Block
Constructing sigmoidal and Gaussian firing rate functions. Left: Heterogeneity in firing onset for individual cells leads to a sigmoidal population activation function. Middle: Including the effect of heterogeneous thresholds for depolarization block leads to a population activation function with a maximum. Right: The activation functions used in this paper Gaussian (solid) and sigmoid (dashed) for excitatory (blue) and inhibitory (black) populations