Table 2.

Hodgkin-Huxley gating variable dynamics

x	xhalf, mV	xk, mV	Time Constants τx, ms
m	−28.1	8.7	$\text{0}\text{.01}+{\left\{\left[\frac{15.65+0.4\text{V}}{1.0-\text{exp}\left(-19.565-0.5\text{V}\right)}\right]+3\text{exp}(-7.463e^{-3}\hspace{0.17em}\mathrm{V})\right\}}^{-1}$
h	−54	−8.77	$56\hspace{0.17em}\left\{{\left[1+\exp \left(\frac{V+21}{4.5}\right)\right]}^{-1}-{\left[1+\exp \left(\frac{V+41}{2.0}\right)\right]}^{{}^{-1}}\right\}+1.0$
n	−20	7.0	$1.0+\Theta (V+60)19.0\exp \left\{-0.667\log {\left[1.0+0.05(V+40.0)\right]}^2\right\}$
l	−40	7.5	${\left\{\frac{-0.02(V+40)}{\exp \left[-(V+40)/4.7\right]-1}+0.194\exp \left[\frac{-(V+15.34)}{224}\right]\right\}}^{-1}$

Θ(x) is the Heaviside-theta step function, which was accidentally omitted from model description in earlier papers (Ji et al. 2012).