/*
* Dendritic action potentials shape the computational
* properties of human layer 2/3 cortical neurons( Gidon et al., 2019)
*
* written by
* Athanasia Papoutsi and Albert Gidon
*
*/
nrn_load_dll("../_mod/nrnmech.dll")
load_file("nrngui.hoc")
load_file("../_morph/171122005.hoc")
load_file("biophys.hoc")
objref ic,vv, imp
proc _init_(){
tstop = 1500
v_init=-74
del=300
biophys(is_active = 1)
finitialize()
fcurrent()
newPlotV()
}
proc set_iclamp(){local del
del = $1
ic = new IClamp(0.5)
ic.del = del
ic.dur = 1000
ic.amp = 0.4
}
proc cell_properties() {
cvode.active(1)
using_cvode_ = 1
_init_()
vv = new Vector()
soma set_iclamp(del)
vv.record(&soma.v(.5))
run()
tau = (Rm = 1/apic[0].g_pas) * cm
soma Rin = get_Rin(0.5)
print "Origin cell"
print "------------"
print "Rin (MOhm) = 41 "
print "Tau_m (ms) = 14.1 "
print "somatic resting potential is around -75 mV"
print "somatic rehobase for spike = 0.4 nA"
soma set_iclamp(del)
cvode.active(1)
using_cvode_ = 1
for i=0,10{
print ic.amp = 0.4 + i*0.05
run()
if(vv.max > 0 ) break
}
print ""
print "Model cell"
print "------------"
print "Rin (MOhm) = ", Rin
print "Tau_m (ms):",tau/1000
print "somatic resting potential is around", vv.x[(del-1)/0.1] ," mV"
print "somatic rehobase for spike = ", ic.amp , " nA"
}
cell_properties()
access soma