Table 2. Limits of parameter values allowed for the PD neuron models.

$V_{\text{1/2}}^{H_{\infty }^m}$ was fixed at -70 mV since there is little variability in the reporting of this experimental measurement [45, 61]. Voltages are in mV, maximal conductances in μS and time constants in ms.

	${\overline{g}}_L$	${\overline{g}}_H$	${\overline{g}}_{Ca}$	${\tau }_m^H$	$V_{1/2}^{C{a}_{\infty }^m}$	${\tau }_m^{Ca}$	$V_{1/2}^{C{a}_{\infty }^h}$	${\tau }_h^{Ca}$
Low	0	0	0	0	-75	0	-75	0
High	0.15	0.35	0.35	3000	-30	100	-30	1000