load_file("nrngui.hoc")
cvode_active(1)
Vrest = -61//-64
dt = 0.1//0.05
celsius = 35.0
freq=20
v_init = -80
numaxon=1
numsoma=1
numbasal=52
numapical=81
Rm = 25370
Cm = 1.41
RaAll= 150
AXONM = 5
gna = .0
gkdr = 0.0
KMULT = 0.0
gkm=0
gkd=0.0
gc=0
gcal=gc
gcan=gc
gcat=gc
gKc=0
gahp=0
ghd=0.00001
tstop=650//500
xopen("geo-cell1zr.hoc")
xopen("fixnseg.hoc")
objref stim, time, y, y2, infile, ifile, currt, curr
access soma
soma {
stim = new IClamp(0.5)
stim.amp=2
stim.dur=400
stim.del=150 // 50
}
forall {insert pas area(.5) e_pas=Vrest cm=Cm}
forsec "dendrite" {
insert ds
insert hd
insert na3
insert kdr
insert kap
insert cacum depth_cacum=diam/2
insert cal
insert can
insert cat
insert cagk
insert KahpM95
}
forsec "soma" {
insert ds
insert hd
insert na3
insert kdr
insert kap
insert km
insert kd
insert cacum depth_cacum=diam/2
insert cal
insert can
insert cat
insert cagk
insert KahpM95
}
forsec "axon" {
insert na3
insert kdr
insert kap
}
// forall {v=Vrest e_pas=Vrest g_pas = 1/Rm Ra=RaAll cm=Cm ek=-90 ena=55}
forall {e_pas=Vrest g_pas = 1/Rm Ra=RaAll cm=Cm ek=-90 ena=55}
geom_nseg()
distance()
tot=0
forall {tot=tot+nseg}
maxdist=0
forall for(x) {if (distance(x)>maxdist) {maxdist=distance(x)}}
forsec "axon" Ra=RaAll/3
forall if(ismembrane("hd")) {ehd_hd=-30}
load_file("ca3b-cell1zr.ses")
proc init() {
access soma
forall {
/*v=Vrest*/ e_pas=Vrest
if (ismembrane("cal")) {
gcalbar_cal=gc
gcanbar_can=gc
gcatbar_cat=gc
gbar_cagk= gKc
gbar_KahpM95 = gahp
}
}
forsec "axon" {
gbar_na3=gna*AXONM
gkdrbar_kdr=gkdr
gkabar_kap = KMULTP sh_kap=0
}
forsec "soma" {
ghdbar_hd=ghd
gbar_na3=gna
gkdrbar_kdr=gkdr
gkabar_kap = KMULTP
gbar_km= gkm
gkdbar_kd = gkd
}
for i=0, numbasal-1 dendrite[i] {
ghdbar_hd=ghd
gbar_na3=gna
gkdrbar_kdr=gkdr
gkabar_kap=KMULTP
}
forsec "apical_dendrite" {
ghdbar_hd=ghd
gbar_na3=gna
gkdrbar_kdr=gkdr
gkabar_kap=KMULTP
}
finitialize(v)
// fcurrent()
//finitialize(v)
// forall for(x) {
//if (ismembrane("cal")) {e_pas(x)=v(x)+(i_hd(x)+ina(x)+ik(x)+ica(x))/g_pas(x)
// } else {
// e_pas(x)=v(x)+(ina(x)+ik(x))/g_pas(x)
// }
// }
cvode.re_init()
}
proc fig9e() { ////////// Weakly-adapting cell
gna = .022
gkdr = 0.01
KMULTP = 0.02
gkm=0
gkd=0.00055
gahp=0.0
gc=1.e-5
gcal=gc
gcan=gc
gcat=gc
gKc=0
ghd=1e-5
Vrest=-60
stim.amp=0.583
run()
}
proc fig9b() { ////////// Burst-firing cell
gna = .022
gkdr = 0.006
KMULTP = 0.023
gc=1.e-5
gKc=5e-5
gkm=0.019
gkd=0.0
gahp=0.0001
gcal=gc
gcan=gc
gcat=gc
ghd=2e-5
stim.amp=1.53
run()
}
proc fig9c() { ////////// Adapting cell
gna = .022
gkdr = 0.01
KMULTP = 0.02
gc=1.e-5
gKc=0
gkm=0.018
gkd=0.0
gahp=0.0
gcal=gc
gcan=gc
gcat=gc
ghd=1e-5
stim.amp=1.37
run()
}
proc fig9d() {
gna = .022
gkdr = 0.01
KMULT = 0.02
gc=1.e-5
gKc=0
gkm=0.0
gkd=0.0
gahp=0.0
gcal=gc
gcan=gc
gcat=gc
stim.amp=0.58
run()
}