axon = h.Section(name = 'axon') axon.L = 2e4 axon.diam = 100 axon.nseg = 43 axon.insert('hh')Use the CellBuild tool to create the model.
Alternatively you can use NEURON to execute interactive_modeling/hhaxon.ses
1. cd to course/interactive_modeling
2. Start python, and at the >>> prompt enter the commands
from neuron import h,gui
h.load_file('hhaxon.ses')
The basic tools you'll need from the
NEURON Main Menu
:
Tools / Point Processes / Manager / Point Manager to specify stimulation
Graph / Voltage axis
and
Graph / Shape plot
to create graphs of v vs t and v vs x.
Tools / RunControl
to run the simulation
Tools / Movie Run to see a smooth evolution of the space plot in time.
2) Change excitability by adjusting sodium channel density.
Tool needed:
Tools / Distributed Mechanisms / Viewers / Shape Name
3) Use two current electrodes to stimulate both ends at the same time.
4) Up to this point, the model has used a very fine spatial grid
calculated from the
Cell Builder's d_lambda rule.
Change nseg to 15 and see what happens.