Fig. 4From: An Analysis of Waves Underlying Grid Cell Firing in the Medial Enthorinal Cortex Red line: Nonlinear activation function for \(n_{\text{h}}\) with \(V_{1/2}=-10\mbox{ mV}\) and \(k=10\). Green line: Piecewise linear fit of \(n_{\text{h},\infty}\) given by Eq. (10)Back to article page