Table 5.

Equations and parameters for unmyelinated axon models

Variable	Equation
Membrane potential V	$C_m\partial V(t,x)/\partial \text{t}=I_{\text{L}}+I_{\text{active}}+(\frac{D}{4{\text{R}}_{\text{ax}}})(\frac{{\partial }^{2}V}{\partial x^2})+I_{\text{inj}}$
Leak current	$I_{\text{L}}(x)={\text{G}}_{\text{L}}(E_{\text{L}}-V(t,x))$
Active current (for WB model)	$I_{\text{active}}(x)=I_{\text{Na}}(x)+I_{\text{K}}(x)$
Active current (for bEIF model)	$I_{\text{active}}(x)=I_{\text{dep}}(x)+I_{\text{rep}}(x)$
Intracellularly injected current	$I_{\text{inj}}(x)=0$ (default)
Parameter	Value
Axon diameter D	10 μm
Axial resistivity Rax	100 Ω cm

Parameters not listed in this table are unchanged from the single-compartment models (Tables 1, 3).