// impedance_conditions.hoc
// runs several cases to determine impedances of the model
//
// use folders
// impedance/bAP
// impedance/bAPspineinhib
// impedance/spineinhib
//
// in each folder store impedance at 100HZ as a function of time for 3
// spine heads and 1 dendrite compartment adjacent to the middle
// (inhibited) spine when there is bAP and inhibition in a spine head
// or each seperately
// These traces have the names
// spine0_z.txt, spine1_z.txt, spine2_z.txt, dendrite_z.txt
//
// if convenient for Mike transfer the names to protocol_abovefilenames
// where protocol is bAP, spineinhib, bAPspineinhib.
print "Running from hoc/impedance_conditions.hoc - results will be in ./impedance/*/*"
objref filename
strdef protocol
proc write_zvecs() { // $s1 is protocol (something like impedance/bAP)
sprint(tmpstr,"%s/dendrite_z.dat" , $s1)
write_vec(tmpstr,tvec, zvec[0])
for i=1, num_of_zvecs-1 {
sprint(tmpstr,"%s/spine%d_z.dat", $s1, i-1)
write_vec(tmpstr,tvec, zvec[i])
}
}
// run with no bAP and a spine inhibition //////////////
MultIClamp[0].number = 0 // no bAP
isyn_ = 2 // middle spine
NC[isyn_].weight = 0.0004 // ordinary inhibitory synapse in the spine
zrun(frequency,delta_t, seclist)
protocol = "impedance/spineinhib"
write_zvecs(protocol)
graphz()
// run with bAP and a spine inhibition //////////////
MultIClamp[0].number = 1 // include bAP
isyn_ = 2 // middle spine
NC[isyn_].weight = 0.0004 // ordinary inhibitory synapse in the spine
zrun(frequency,delta_t, seclist)
protocol = "impedance/bAPspineinhib"
write_zvecs(protocol)
graphz()
// run with bAP and no spine inhibition //////////////
MultIClamp[0].number = 1 // no bAP
isyn_ = 2 // middle spine
NC[isyn_].weight = 0.0 // no inhibitory synapse in the spine
zrun(frequency,delta_t, seclist)
protocol = "impedance/bAP"
write_zvecs(protocol)
graphz()