Table 2.

Ion Channel Kinetics

Ion	Channel	State Variable	α	β
Na	Fast sodium	m	$\frac{-0.6*(V+30)}{e^{-0.1*(v+30)}-1}$	$\frac{20}{{\mathrm{e}}^{\frac{\mathrm{v}+55}{18}}}$
		h	$\frac{0.4}{e^{\frac{\mathrm{v}+50}{20}}}$	$\frac{6}{1+{\mathrm{e}}^{-0.1*(\mathrm{v}+20)}}$
K	Delayed rectifier	n	$\frac{-0.02*(\mathrm{v}+40)}{({\mathrm{e}}^{-0.1*(\mathrm{v}+40)})-1}$	$\frac{0.4}{{\mathrm{e}}^{\frac{\mathrm{v}+50}{80}}}$
	A-type	a	$\frac{-0.006*(\mathrm{v}+90)}{({\mathrm{e}}^{-0.1*(\mathrm{v}+90)})-1}$	$\frac{0.1}{{\mathrm{e}}^{\frac{\mathrm{v}+30}{10}}}$
		hA	$\frac{0.04}{{\mathrm{e}}^{\frac{\mathrm{v}+70}{20}}}$	$\frac{-0.6}{{\mathrm{e}}^{-0.1*(\mathrm{v}+40)}+1}$
	Calcium activated	$I_{K,\mathit{\text{Ca}}}={\widehat{G}}_{K,\mathit{\text{Ca}}}\left(\frac{{[\mathit{\text{Ca}}]}_{\mathrm{i}}/0.001}{1+{[\mathit{\text{Ca}}]}_{\mathrm{i}}/0.001}\right)(v-e_k)$
Ca	Ca	c	$\frac{-0.3*(\mathrm{v}+13)}{({\mathrm{e}}^{-0.1*(\mathrm{v}+13)})-1}$	$\frac{10}{{\mathrm{e}}^{\frac{\mathrm{v}+38}{18}}}$