NEURON { POINT_PROCESS gap2 NONSPECIFIC_CURRENT i RANGE i, g POINTER vgap } PARAMETER { v (millivolt) g = 0 (nanosiemens) :1 (nanosiemens) : 1nS = 1000 pS } ASSIGNED { i (nanoamp) vgap (millivolt) } BREAKPOINT { i = (v - vgap)*g*(0.001) }