Step 1. Bring up a Channel Builder
We're setting up a distributed or "density" mechanism,
so create a Channel Builder by clicking on
Build / Channel Builder / Density
in the NEURON Main Menu toolbar.
Release the mouse button and a Channel Builder appears.
This one is called
ChannelBuild ; we'll refer to it as "CB".
- In the top panel of this tool we see that
it starts out specifying a passive leak current
described by Ohm's law,
and that it is carried by a "nonspecific ion" :
- i_leak = g_leak * (v - e_leak)
- The default values for the conductance density and equilibrium
potential of this current are 0 S/cm2 and 0 mV,
Ohm's law is OK, but we have to change the other properties of this channel :
its name, its ion, and its default conductance and equilibrium potential.
Next we will change the channel's name, ion, default conductance and equilibrium potential.
[ Outline |
Copyright © 2004-2005 by N.T. Carnevale and M.L. Hines, All Rights