load_file("nrngui.hoc")
load_file("start.ses")
// add a 3-d point at 150 um in axon to allow taper from 0 to 150 if needed
// the cell builder only constructs 2 point 3d sections.
axon { pt3dinsert(1, .9*x3d(0)+.1*x3d(1), .9*y3d(0)+.1*y3d(1), 0, 10) }
proc prun() { // normal run but keep lines every .1 ms on shape plot
stdinit()
Graph[1].erase()
while (t < tstop) {
continuerun(t + .1)
if (stoprun) break
Graph[1].exec_menu("Keep Lines")
Graph[1].exec_menu("Keep Lines")
}
}
// undo any figure changes
proc standard() {
tstop = 3
tstop_changed()
celsius = 16.3
axon.diam=10
forall { gnabar_hh = .12 gkbar_hh = .036 gl_hh = .0003 }
dend {
gnabar_hh = 0 gkbar_hh = 0 gl_hh = 0
g_pas = 1/6000
}
axon { stimdef(1, .1, 20) }
}
proc stimdef() {
hoc_ac_ = $1
PointProcessManager[0].move()
PointProcessManager[0].pp.dur = $2
PointProcessManager[0].pp.amp = $3
}
proc taper() {
axon {pt3dchange(0, soma.diam)}
// since the next 2d point is at 150 microns this will result in
// a taper
}
proc extrahh() {local x
dend {
x = $1/L
g_pas(0:x) = 0:0
gnabar_hh(0:x) = .12:.12
gkbar_hh(0:x) = .036:.036
gl_hh(0:x) = .0003:.0003
}
}