begintemplate Mitral
// ls - long secondary dendrites
public soma, priden, secden, tuftden, hillock, initialseg
public dendritic, somatic, second, somden, synodor
public dampa
public position, x, y, z
create soma, priden, secden[2], tuftden, hillock, initialseg
forall {Ra = 150}
objref dendritic, somatic, somden, synodor
objref dampa
proc init() {
dendritic = new SectionList()
forsec "priden" dendritic.append()
forsec "secden" dendritic.append()
forsec "tuftden" dendritic.append()
somatic = new SectionList()
soma somatic.append
hillock somatic.append
somden = new SectionList()
forsec somatic somden.append()
forsec dendritic somden.append()
topol()
segments()
geometry()
memb()
x = y = z = 0 // only change via position
}
proc topol() {local i
connect secden[0](0), soma(.5)
connect secden[1](0), soma(.5)
connect priden(0), soma(1)
connect tuftden(0), priden(1)
connect hillock(0), soma(0)
connect initialseg(0), hillock(1)
}
proc segments() {local i
soma.nseg= 1
priden.nseg = 5
forsec "tuftden" nseg = 10
forsec "secden" nseg = 50
initialseg.nseg = 3
hillock.nseg = 3
}
proc geometry() {local i
basic_shape()
soma { L = 25 diam = 20 }
priden { L = 300 diam = 3 }
forsec "tuftden" {rallbranch=20 L=300 diam(0:1)=.4:.4 }
forsec "secden" { L=1000 diam=2 }
initialseg{ L=30 diam=1.5}
hillock { L=5 diam(0:1) = soma.diam(0) : initialseg.diam(0) }
define_shape()
}
proc basic_shape() {
soma {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(0, 1, 0, 1)}
priden {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(0, 1, 0, 1)}
tuftden {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(0, 1, 0, 1)}
secden[0] {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(1, 0, 0, 1)}
secden[1] {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(-1, 0, 0, 1)}
hillock {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(0, -1, 0, 1)}
initialseg {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(0, -1, 0, 1)}
}
proc memb() {
forall {insert pas }
forsec somden {
insert nax insert kamt insert kdrmt
ek = -90
ena = 50
gbar_nax = 0.04 sh_nax=10
gbar_kdrmt = 0.0001
gbar_kamt = 0.004
}
forall {Ra = 150}
totarea=0
forall {
for (x) {totarea=totarea+area(x)}
cm = 1.8
g_pas = 1/12000
e_pas = -65
}
initialseg {
insert nax insert kamt insert kdrmt
ek = -90
ena = 50
g_pas = 1/1000
gbar_nax = 0.8
sh_nax = 0
gbar_kamt = 0.08
gbar_kdrmt = 0.0001
}
tuftden {
synodor = new Exp2Syn(.2)
synodor.e=0
synodor.tau1 = 20
synodor.tau2 = 200
}
}
proc position() { local i
soma for i = 0, n3d()-1 {
pt3dchange(i, $1-x+x3d(i), $2-y+y3d(i), $3-z+z3d(i), diam3d(i))
}
x = $1 y = $2 z = $3
}
endtemplate Mitral