Table 2.

Parameters of the steady-state model of the proctolin-activated current

Variable/parameter	Value
$\overline{g}$MI, $\overline{g}$MI-T (nS)	0.125, 1.00
EMI, EMI-T (mV)	35, 24
mMI∞(V)	$\mathrm{S}\left(\frac{v+19}{18}\right)$
τ mMI (V)	2
mMI-T∞(V)	$\mathrm{S}\left(\frac{v+11.8}{12}\right)$
τ mMI-T (V)	$2+\frac{150}{\cosh \left(\frac{v\hspace{0.17em}+\hspace{0.17em}20}{4}\right)}$
hMI-T∞(V)	$\mathrm{S}\left(-\frac{v\hspace{0.17em}+\hspace{0.17em}40}{7}\right)$
τ hMI-T (V)	$\begin{array}{c}100+\frac{600}{\cosh \left(0.1(v\hspace{0.17em}+\hspace{0.17em}30)\right)}\\ +\hspace{0.17em}200\left(0.2(v\hspace{0.17em}+\hspace{0.17em}30)\right)\end{array}$

In this table, S(x) denotes the logistic sigmoid function 1/(1+exp(–x)). Time constants are in milliseconds.