Fig 5. Transmembrane potential v and gating variable w as functions of spatial variable x.

Upper panels show a spatial evolution of the excitation pulse in the sensory and motor neurons in the interval of time between 2.5 and 25. Lower left panel shows progression of the excitation pulse in the interneuron at time 25. Lower right panel illustrates temporal evolution of excitation at x = 0.75. Parameters C₁, C₂, and C₃ are equal to 1, 1.8, and -0.2, respectively, for ideal propagation through all regions.