/* topo20.hoc
Model for HVC(RA) projection neuron with unmyelinated axon.
Simple ball and stick model of axon and soma. The axon
has two types of sections one contains a mitodondrion and the other does not.
The section with the mitochondrion has increased intracellular resisitivity.
The length of a mitochondrion containing section is fixed at 1 micron. The
mitochondria containing sections are distributed uniformly along the axon.
This file sets the topological parameters to create an axon with 20%
longitudinal mitochondial coverage, that is 20% of the length of the axon
is made up of sections containing mitochondria. The length of an axon + a mitocondrion
section is 5 microns.
*/
// Set longitudinal mitochondrial coverage to 20%
lcover = 20
printf ("longitudinal mitochondrial coverage = %.10g %\n",lcover)
// Set length of mitochondrion free sections
// Length of mitochondrion containing sections fixed at 1 micron
axonL= 4 //length of axon section without mitochondrion
nseg_axon=11 //nseg for axon section without mitochondrion
//topological parameters
nmito=400 // number of mitochondria sections
naxon=400 // number of axon sections
// Set axon sections used to compute conduction velocity
// Sections must be in the middle of the axon separated by 200 microns
naxon1 = 180
naxon2 = 220
load_file("HVCRA_neuron.hoc")