create soma
access soma
membranecap = 1 /* specific membrane capacitance in uF cm^-2 */
membraneresist = 40000 /* specific membrane resistance in ohm cm^2 */
axialresist = 100 /* axial resistivity in ohm cm */
Vrest = -70 /* resting potential, mV */
ECA=60
Gbar=5
V05=-10
Z=10
objref gplot, vplot, vC,BOX
proc load_cell() {
// $s1 filename
aspiny = 0
forall delete_section()
xopen($s1)
access soma
forall {
nseg*=5
insert pas
insert Calcium
gbar_Calcium=Gbar
v12_Calcium=V05
vSlope_Calcium=Z
tau_Calcium=3
e_pas = Vrest
eca= ECA
g_pas=1/membraneresist
Ra=axialresist
cm=membranecap
}
soma vC = new SEClamp(0.5)
vC.amp1=-120
vC.dur1=15400
vC.amp2=0
vC.dur2=1000
vC.rs=1e-5
}
proc DoIt(){
finitialize(Vrest)
fcurrent()
dt=100
for i=0,149 fadvance()
dt=10
for i=0,39 fadvance()
dt=0.1
for i=0,99 fadvance()
dt=0.025
for j=0,49 for i=0,39 fadvance()
BOX = new HBox()
BOX.intercept(1)
vplot = new PlotShape()
vplot.variable("v")
vplot.scale(-10,80)
vplot.exec_menu("Show Diam")
vplot.exec_menu("Shape Plot")
gplot = new PlotShape()
gplot.variable("gca_Calcium")
gplot.scale(0,Gbar+0.5)
gplot.exec_menu("Show Diam")
gplot.exec_menu("Shape Plot")
xpanel("Information")
xlabel("The left graph displays the membrane potential")
xlabel("in pseudo color in each compartment of the neuron while")
xlabel("the right graph displays the activation of the")
xlabel("voltage-gated conductance also in pseudo color.")
xlabel("Change the value of the conductance density in ")
xlabel("panel or cell type to observe the different decay.")
xpanel()
BOX.intercept(0)
BOX.map()
}
proc fig1a() {
load_cell("cells/A0606.hoc")
DoIt()
}
proc fig1b() {
load_cell("cells/C050800E2.hoc")
DoIt()
}
proc fig1c() {
load_cell("cells/C230998A-I3.hoc")
DoIt()
}
proc fig1d() {
load_cell("cells/j7_L4stellate.hoc")
DoIt()
}
xpanel("Simulate")
xvalue("Calcium conductance density", "Gbar")
xbutton("1. L5 Pyramidal Neuron","fig1a()")
xbutton("2. L4 interneuron","fig1b()")
xbutton("3. L2/3 bipolar interneuron ","fig1c()")
xbutton("4. L4 spiny stellate ","fig1d()")
xpanel()