from neuron import h import matplotlib matplotlib.use('Agg') import numpy from pylab import * import mytools import pickle import time import sys import random random.seed(1) v0 = -80 ca0 = 0.0001 proximalpoint = 400 distalpoint = 620 #distalpoint = 960 BACdt = 5.0 fs = 8 maxSynsPerSeg = 100 Nsyns = 3000 maxLens = [1300,1185] gmaxes = [] unpicklefile = open('synlocs300.sav', 'r') unpickledlist = pickle.load(unpicklefile) unpicklefile.close() Nsyns = unpickledlist[0] maxSynsPerSeg = unpickledlist[1] synlocsAll = unpickledlist[3] for icell in range(0,2): synlocs = synlocsAll[icell] morphology_file = "morphologies/cell"+str(icell+1)+".asc" biophys_file = "models/L5PCbiophys3.hoc" template_file = "models/L5PCtemplate.hoc" h(""" load_file("stdlib.hoc") load_file("stdrun.hoc") objref cvode cvode = new CVode() cvode.active(1) load_file("import3d.hoc") objref L5PC load_file(\""""+biophys_file+"""\") load_file(\""""+template_file+"""\") L5PC = new L5PCtemplate(\""""+morphology_file+"""\") objref st1, st2 st1 = new IClamp(0.5) st2 = new IClamp(0.5) L5PC.soma st1 L5PC.soma st2 forsec L5PC.somatic { } forsec L5PC.apical { } L5PC.distribute_channels("apic","gIhbar_Ih",2,-0.8696,3.6161,0.0,1.0*2.0870,0.0002) L5PC.distribute_channels("apic","gCa_HVAbar_Ca_HVA",3,1.0,0.1,685.0,885.0,1.0*0.000555) L5PC.distribute_channels("apic","gCa_LVAstbar_Ca_LVAst",3,1.0,0.01,685.0,885.0,1.0*0.0187) objref sl,ns,syn1,con1,isyn, tvec, syns["""+str(Nsyns)+"""] isyn = new Vector() tvec = new Vector() sl = new List() double siteVec[2] sl = L5PC.locateSites("apic","""+str(distalpoint)+""") maxdiam = 0 for(i=0;i maxdiam) { j = i maxdiam = dd } } siteVec[0] = sl.o[j].x[0] siteVec[1] = sl.o[j].x[1] print "distalpoint gCa_HVA: ", L5PC.apic[siteVec[0]].gCa_HVAbar_Ca_HVA print "distalpoint gCa_LVA: ", L5PC.apic[siteVec[0]].gCa_LVAstbar_Ca_LVAst access L5PC.apic[siteVec[0]] L5PC.apic[siteVec[0]] { syn1 = new AlphaSynapse(siteVec[1]) syn1.e = 0 syn1.tau = 5 syn1.onset = 10000 + """+str(BACdt)+""" cvode.record(&syn1.i,isyn,tvec) } """) for istim in range(0,Nsyns): h(""" siteVec[0] = """+str(synlocs[istim][0])+""" siteVec[1] = """+str(synlocs[istim][1])+""" access L5PC.apic[siteVec[0]] L5PC.apic[siteVec[0]] { syns["""+str(istim)+"""] = new AlphaSynapse(siteVec[1]) syns["""+str(istim)+"""].e = 0 syns["""+str(istim)+"""].tau = 5 syns["""+str(istim)+"""].onset = 10000 + """+str(BACdt)+""" } """) h(""" objref vsoma, vdend, recSite, vdend2, isoma, cadend, casoma vsoma = new Vector() casoma = new Vector() vdend = new Vector() cadend = new Vector() vdend2 = new Vector() access L5PC.soma cvode.record(&v(0.5),vsoma,tvec) cvode.record(&cai(0.5),casoma,tvec) sl = new List() sl = L5PC.locateSites("apic","""+str(proximalpoint)+""") maxdiam = 0 for(i=0;i maxdiam) { j = i maxdiam = dd } } siteVec[0] = sl.o[j].x[0] siteVec[1] = sl.o[j].x[1] print "proximalpoint gCa_HVA: ", L5PC.apic[siteVec[0]].gCa_HVAbar_Ca_HVA print "proximalpoint gCa_LVA: ", L5PC.apic[siteVec[0]].gCa_LVAstbar_Ca_LVAst access L5PC.apic[siteVec[0]] cvode.record(&v(siteVec[1]),vdend,tvec) cvode.record(&cai(siteVec[1]),cadend,tvec) recSite = new IClamp(siteVec[1]) recSite.amp = 0 L5PC.apic[siteVec[0]] { recSite } access L5PC.soma isoma = new Vector() cvode.record(&st1.i,isoma,tvec) """) ITERS = 27 if icell==0: nextgs = [0.000,0.001,0.0005] if icell==1: nextgs = [0.000,0.01,0.005] for iter in range(0,ITERS): tstop = 11000.0 squareAmp = 0.0 squareDur = 10.0 epsp_gmax = nextgs[min(iter,2)] print epsp_gmax h(""" tstop = """+str(tstop)+""" v_init = """+str(v0)+""" """) for istim in range(0,Nsyns): h("syns["+str(istim)+"].gmax = "+str(epsp_gmax)) h.init() h.run() times=np.array(h.tvec) Casoma=np.array(h.casoma) Cadend=np.array(h.cadend) Vsoma=np.array(h.vsoma) Vdend=np.array(h.vdend) nSpikes = len(mytools.spike_times(times,Vsoma,-35,100)) if iter > 2 and nSpikes > 0: nextgs = [nextgs[0],nextgs[2],0.5*(nextgs[0]+nextgs[2])] if iter > 2 and nSpikes == 0: nextgs = [nextgs[2],nextgs[1],0.5*(nextgs[2]+nextgs[1])] print str(nSpikes)+", nextgs="+str(nextgs) gmaxes.append(nextgs[2]) picklelist = [gmaxes,Nsyns,maxSynsPerSeg] file = open('thresholddistalamp300_control.sav', 'w') pickle.dump(picklelist,file) file.close()