// CN model used in Saak V Ovsepian, Volker Steuber, Marie Le
// Berre, Liam O'Hara, Valerie B O'Leary, and J. Oliver Dolly
// (2013). A Defined Heteromeric KV1 Channel Stabilizes the
// Intrinsic Pacemaking and Regulates the Efferent Code of Deep
// Cerebellar Nuclear Neurons to Thalamic Targets. Journal of
// Physiology (epub ahead of print).
//
// written by Johannes Luthman, modified by Volker Steuber
//
// main simulation script that replicates Figure 9A,B
// in Ovsepian et al. (2013)
strdef strFilePrefix
Kdrblock = 1 // will be overwritten
strFilePrefix = "Kdr60"
load_file("nrngui.hoc")
load_file("model3_params.hoc")
load_file("DCN_morph.hoc")
load_file("DCN_mechs2.hoc")
objref oRndInh, oRndExc,CurrentClamp,ra,VoltageClamp,Vol1,Edata,Edata1
objref gammaStimPC[INHTOTALSYNAPSES]
objref netconPC[INHTOTALSYNAPSES],spikecount,spiketimes,Vol,GABAsyn,vdata_ex,vtemp_ex,vlength_ex,Vect_list_ex
// Declare instances of the GammaStim objects for excitatory synapses
// (1 GammaStim activates 1 AMPA + 1 fNMDA + 1 sNMDA) and the corresponding
// NetCon objects (=1 each for AMPA, fNMDA, and sNMDA).
objref gammaStimExc[EXCTOTALSYNAPSES],filed,filed1
objref filed3,filed4,filed5
objref netconExc[3 * EXCTOTALSYNAPSES]
num=1
if (name_declared("x")==5) { // x has been assigned a numerical value
num = x
}
print "num is ", num
strdef PCdata, MFdata, ext,PCfilename,MFfilename
PCdata = "datasp"
MFdata = "datasp_ex"
ext = ".dat"
sprint(PCfilename,"%s%d%s",PCdata,num,ext)
sprint(MFfilename,"%s%d%s",MFdata,num,ext)
print PCfilename
print MFfilename
strdef PCl, MFl, ext,PClname,MFlname
PCl = "l"
MFl = "l_ex"
ext = ".dat"
sprint(PClname,"%s%d%s",PCl,num,ext)
sprint(MFlname,"%s%d%s",MFl,num,ext)
print PClname
print MFlname
objref fdata,vtemp,vdata,Vect_list,fdata1,vlength
vdata=new Vector()
vtemp=new Vector()
vlength = new Vector()
Vect_list=new List()
fdata = new File() //datasp
fdata1 = new File() //datasp
Vol1=new Vector()
Edata = new File()
Edata1=new File()
vdata_ex=new Vector()
vtemp_ex=new Vector()
vlength_ex = new Vector()
Vect_list_ex=new List()
objref NaFcurrent,NaPcurrent,fKdrcurrent,sKdrcurrent,SKcurrent,TNCcurrent, hcurrent,CaLVAcurrent,CaHVAcurrent,trialtorecord
objref vectmp,vectmp1,fnmdalist,snmdalist
NaFcurrent = new Vector()
NaPcurrent = new Vector()
fKdrcurrent = new Vector()
sKdrcurrent = new Vector()
SKcurrent = new Vector()
TNCcurrent = new Vector()
hcurrent = new Vector()
CaLVAcurrent = new Vector()
CaHVAcurrent = new Vector()
trialtorecord = new Vector()
//trialtorecord.append(1,9,11,13,21,23,33,35,49,43,52,53,61,68,72,78,87,88,99,91)
trialtorecord.indgen(1,100,1)
fnmdalist =new List()
snmdalist =new List()
for i=0, EXCTOTALSYNAPSES-1 {
vectmp = new Vector()
vectmp1 = new Vector()
fnmdalist.append(vectmp)
snmdalist.append(vectmp1)
}
// model vecstim for inhibitory input
fdata.ropen(PCfilename)
fdata1.ropen(PClname)
vtemp = new Vector()
vdata.scanf(fdata)
vlength.scanf(fdata1)
fdata.close()
fdata1.close()
numspikespercell = int(vdata.size()/INHTOTALSYNAPSES)
src_start = 0
for i = 0, INHTOTALSYNAPSES-1 {
vtemp = new Vector()
src_tmp = vlength.x[i]
vtemp.copy(vdata,0,src_start,src_start+src_tmp-1)
src_start=src_start+src_tmp
Vect_list.append(vtemp)
}
// model netstim for inhibitory input
Edata.ropen(MFfilename)
Edata1.ropen(MFlname)
vtemp_ex = new Vector()
vdata_ex.scanf(Edata)
vlength_ex.scanf(Edata1)
Edata.close()
Edata1.close()
//numspikespercell = int(vdata_ex.size()/EXCTOTALSYNAPSES)
src_start_ex = 0
for i = 0, EXCTOTALSYNAPSES-1 {
vtemp_ex = new Vector()
src_tmp_ex = vlength_ex.x[i]
vtemp_ex.copy(vdata_ex,0,src_start_ex,src_start_ex+src_tmp_ex-1)
src_start_ex=src_start_ex+src_tmp_ex
Vect_list_ex.append(vtemp_ex)
}
///////////////////////////////////////////////////////////////
proc DCNloop() {
DCNmechs()
tstop=2000
runSimulation()
if (trialtorecord.indwhere("==",num) >= 0) {
rec_data()
}
run(tstop)
spiketimes.printf()
//quit()
}
proc runSimulation() {
// Set up the excitatory synapses
oRndExc = new Random()
oRndExc.ACG(randomiserSeed)
spiketimes=new Vector()
Vol=new Vector()
soma spikecount=new APCount(0.5)
spikecount.thresh=-20
spikecount.record(spiketimes)
Vol.record(&soma.v(0.5))
soma CurrentClamp = new IClamp(0.5)
CurrentClamp.amp = -0.15
CurrentClamp.dur = 0//1500
CurrentClamp.del = 500
//CurrentClamp.del = 0
//Vol.record(&soma.h_NaP(0.5))
soma VoltageClamp = new SEClamp(0.5)
VoltageClamp.amp1 = -60
VoltageClamp.dur1 = 0//1e9//1500
//Vol.record(&VoltageClamp.i)
//Vol.record(&fnmda[0].i)
Vol1.record(&snmda[0].i)
soma GABAsyn = new Exp2Syn(0.5)
GABAsyn.tau1 = 0.25 //0.25
GABAsyn.tau2 =2.25 //2.25
GABAsyn.e = -GABARevPot
ra=new Random()
for (c=0; c < EXCTOTALSYNAPSES; c+=1) {
// gammaStimExc[c] = new NetStim()
// gammaStimExc[c].number = 1e9
// gammaStimExc[c].interval = 100
// gammaStimExc[c].start = 0
// gammaStimExc[c].noise = 1+ra.uniform(0,1)
gammaStimExc[c] = new VecStim(0.5)
gammaStimExc[c].play(Vect_list_ex.object[c])
}
// Set up the excitatory NetCons.
ncIndex = 0
for (c=0; c < EXCTOTALSYNAPSES; c+=1) {
// Create three NetCons for each excitatory GammaStim to connect it
// to the ampa and the two nmda receptors.
netconExc[ncIndex] = new NetCon(gammaStimExc[c], ampa[c])
netconExc[ncIndex].threshold = 0 //mV
netconExc[ncIndex].weight = gAMPA
netconExc[ncIndex+1] = new NetCon(gammaStimExc[c], fnmda[c])
netconExc[ncIndex+1].threshold = 0 //mV
netconExc[ncIndex+1].weight = gfNMDA
netconExc[ncIndex+2] = new NetCon(gammaStimExc[c], snmda[c])
netconExc[ncIndex+2].threshold = 0 //mV
netconExc[ncIndex+2].weight = gsNMDA
ncIndex = ncIndex + 3
}
oRndInh = new Random()
oRndInh.ACG(randomiserSeed)
for (c=0; c<INHTOTALSYNAPSES; c+=1) {
//gammaStimPC[c] = new NetStim(0.5)
//gammaStimPC[c].number = 0//1e9
//gammaStimPC[c].interval = 0//40
//gammaStimPC[c].start = 0
//gammaStimPC[c].noise = 0//oRndInh.uniform(0,1)
gammaStimPC[c] = new VecStim(0.5)
gammaStimPC[c].play(Vect_list.object[c])
}
// Set up the GABA NetCons.
gsIndex = 0
counterOfNetCons = 0
for (cGABA=0; cGABA < INHTOTALSYNAPSES; cGABA=cGABA+1) {
//netconPC[cGABA] = new NetCon(gammaStimPC[cGABA], GABAsyn)
s=ra.discunif(0,300)
netconPC[cGABA] = new NetCon(gammaStimPC[cGABA], gaba[s])
//netconPC[cGABA].threshold = 0 //mV
netconPC[cGABA].weight = gGABA//3e-3 //0.2e-3//0.3e-3//gGABA //0.25
}
} // end of "proc runSimulation()".
proc rec_data() {
//record current
rec_dt_current = 0.1 //ms
rec_dt_nmda = 0.5 //ms
NaFcurrent.record(&soma.ina_NaF(0.5),rec_dt_current)
NaPcurrent.record(&soma.ina_NaP(0.5),rec_dt_current)
fKdrcurrent.record(&soma.ik_fKdr(0.5),rec_dt_current)
sKdrcurrent.record(&soma.ik_sKdr(0.5),rec_dt_current)
SKcurrent.record(&soma.ik_SK(0.5),rec_dt_current)
hcurrent.record(&soma.ih_h(0.5),rec_dt_current)
TNCcurrent.record(&soma.i_TNC(0.5),rec_dt_current)
CaLVAcurrent.record(&soma.ical_CaLVA(0.5),rec_dt_current)
CaHVAcurrent.record(&soma.ica_CaHVA(0.5),rec_dt_current)
for i=0, EXCTOTALSYNAPSES-1 {
//fnmdalist.object(i).record(&fnmda[i].g,rec_dt_nmda)
//snmdalist.object(i).record(&snmda[i].g,rec_dt_nmda)
}
}
//DCNrun()
DCNloop()
strdef file1, file2, ext,filename1,filename2
file1 = "m3_a"
file2 = "m3_b"
ext = ".bin"
sprint(filename1,"%s%d%s",file1,num,ext)
sprint(filename2,"%s%d%s",file2,num,ext)
print filename1
print filename2
filed = new File()
filed.wopen(filename1)
filed.close(filename1)
filed.aopen(filename1)
Vol.vwrite(filed)
//Vol1.vwrite(filed)
filed.close()
filed1 = new File()
filed1.wopen(filename2)
filed1.close(filename2)
filed1.aopen(filename2)
spiketimes.vwrite(filed1)
filed1.close()
if (trialtorecord.indwhere("==",num) >= 0) {
print "sss"
strdef filename3,filename4,file3,file4,file5,filename5
file3 = "m3_c"
file4 = "m3_d"
file5 = "m3_e"
sprint(filename3,"%s%d%s",file3,num,ext)
sprint(filename4,"%s%d%s",file4,num,ext)
sprint(filename5,"%s%d%s",file5,num,ext)
filed3 = new File()
filed3.wopen(filename3)
filed3.close(filename3)
filed3.aopen(filename3)
NaFcurrent.vwrite(filed3)
NaPcurrent.vwrite(filed3)
fKdrcurrent.vwrite(filed3)
fKdrcurrent.vwrite(filed3)
sKdrcurrent.vwrite(filed3)
TNCcurrent.vwrite(filed3)
hcurrent.vwrite(filed3)
CaLVAcurrent.vwrite(filed3)
CaHVAcurrent.vwrite(filed3)
filed3.close()
filed4 = new File()
filed4.wopen(filename4)
filed4.close(filename4)
filed4.aopen(filename4)
for i=0, EXCTOTALSYNAPSES-1 {
// fnmdalist.object(i).vwrite(filed4)
}
filed4.close()
filed5 = new File()
filed5.wopen(filename5)
filed5.close(filename5)
filed5.aopen(filename5)
for i=0, EXCTOTALSYNAPSES-1 {
// snmdalist.object(i).vwrite(filed5)
}
filed5.close()
}
quit()