// based on initxstimu.hoc // extracellular stimulation forall { insert extracellular insert xtrau } load_file("interpxyzu.hoc") // only interpolates sections that have xtrau load_file("setpointersu.hoc") // automatically calls grindaway() in interpxyzu.hoc load_file("calcrxcu.hoc") // computes transfer r between segments and recording electrodes load_file("calcd.hoc") // computes scale factor used to calculate extracellular potential // produced by a uniform electrical field load_file("zapstimu.hoc") // extracellular stimulus