NEURON { THREADSAFE POINT_PROCESS gap NONSPECIFIC_CURRENT i RANGE r, i, dum POINTER vgap } PARAMETER { vgap (millivolt) r = 1e10 (megohm) dum = 0 (milivolt) } ASSIGNED { i (nanoamp) v (millivolt) } BREAKPOINT { i = (v - vgap)/r }