// Data from Saraga et al. (2003) paper
// OLM_Cell
begintemplate CA1OLMCell
public is_art
public init, topol, basic_shape, subsets, geom, biophys, geom_nseg
public pre_list, connect2target
public soma, dend1, dend2, axon
public all
objref pre_list
proc init() {
topol()
subsets()
geom()
biophys()
geom_nseg()
pre_list = new List()
synapses()
}
create soma, dend1, dend2, axon
proc topol() { local i
connect dend1(0), soma(1)
connect dend2(0), soma(0)
connect axon(0), soma(1)
basic_shape()
}
proc basic_shape() {
soma {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(15, 0, 0, 1)}
dend1 {pt3dclear() pt3dadd(15, 0, 0, 1) pt3dadd(90, 0, 0, 1)}
dend2 {pt3dclear() pt3dadd(0, 0, 0, 1) pt3dadd(-74, 0, 0, 1)}
axon {pt3dclear() pt3dadd(15, 0, 0, 1) pt3dadd(15, 120, 0, 1)}
}
objref all
proc subsets() { local i
objref all
all = new SectionList()
soma all.append()
dend1 all.append()
dend2 all.append()
axon all.append()
}
proc geom() {
forsec all { }
soma { L = 20 diam = 10 }
dend1 { L = 250 diam = 3 }
dend2 { L = 250 diam = 3 }
axon { L = 150 diam = 1.5 }
}
external lambda_f
proc geom_nseg() {
forsec all { nseg = int((L/(0.1*lambda_f(100))+.9)/2)*2 + 1 }
}
proc biophys() {
Rm = 20000
//Rm = 1/5e-05 // original
forsec all {
Ra = 150
cm = 1.3
}
soma {
insert IA
gkAbar_IA = 0.0165
insert Ih
gkhbar_Ih = 0.0005
// gkhbar_Ih = 0.001385
insert Ksoma
gksoma_Ksoma = 0.0319
insert Nasoma
gnasoma_Nasoma = 0.0107
gl_Nasoma = 1/Rm
el_Nasoma = -70
}
dend1 {
insert IA
gkAbar_IA = 0.004
//gkAbar_IA = 0.013
//insert Ih
//gkhbar_Ih = 0.001385
insert Kdend
gkdend_Kdend = 0.033//2*0.023
insert Nadend
gnadend_Nadend = 0.0127//2*0.0117
gl_Nadend = 1/Rm
el_Nadend = -70
}
dend2 {
insert IA
gkAbar_IA = 0.004
//gkAbar_IA = 0.013
//insert Ih
//gkhbar_Ih = 0.001385
insert Kdend
gkdend_Kdend = 0.033//2*0.023
insert Nadend
gnadend_Nadend = 0.0127//2*0.0117
gl_Nadend = 1/Rm
el_Nadend = -70
}
axon {
insert Kaxon
gkaxon_Kaxon = 0.05104
insert Naaxon
gnaaxon_Naaxon = 0.01712
gl_Naaxon = 1/Rm
el_Naaxon = -70
}
}
obfunc connect2target() { localobj nc //$o1 target point process, optional $o2 returned NetCon
soma nc = new NetCon(&v(1), $o1)
nc.threshold = -10
if (numarg() == 2) { $o2 = nc } // for backward compatibility
return nc
}
objref syn_
proc synapses() {
/* E0 */ dend2 syn_ = new Exp2Syn(0.5) pre_list.append(syn_) // AMPA PC
syn_.tau1 = 0.5
syn_.tau2 = 3
/* E1 */ dend1 syn_ = new Exp2Syn(0.5) pre_list.append(syn_) // AMPA PC
syn_.tau1 = 0.5
syn_.tau2 = 3
/* I2 */ soma syn_ = new Exp2Syn(0.5) pre_list.append(syn_) // GABA-A Septum
syn_.tau1 = 1
syn_.tau2 = 8
syn_.e = -75
/* I3 */ soma syn_ = new Exp2Syn(0.5) pre_list.append(syn_) // GABA-B Septum
syn_.tau1 = 35
syn_.tau2 = 100
syn_.e = -75
}
func is_art() { return 0 }
endtemplate CA1OLMCell