/* Author: Xu Zhang @UConn, Jan., 2019
Standard CCTC model under one typical ET condition as indicated in Figure 3A
DCN activity during tremor follows Figures 3B-E (ET).
*/
load_file("nrngui.hoc")
load_file("rngRead.hoc") // Load rng seeds
noiseSwitch=1 // Membrane and synaptic noises, 1/0 = turn on/off
dt = 0.0125 // Cannot be set larger, otherwise ION and DCN would have different dynamics
v_init = -57
tstop = 10000 // Simulation period
// Loading individual cells
load_file("cell_ION.hoc")
load_file("cell_PC.hoc")
load_file("cell_DCN.hoc")
load_file("cell_TC.hoc")
load_file("cell_MC.hoc")
// Loading synaptic connections
load_file("syn_ION_PC.hoc")
load_file("syn_PC_DCN.hoc")
load_file("syn_DCN_ION.hoc")
load_file("syn_DCN_TC.hoc")
load_file("syn_TC_MC.hoc")
load_file("syn_MC_GrL.hoc")
load_file("syn_GrL_PC.hoc")
// One typical ET condition (tau = 12, R = 0.7)
for i = 0,39 {
PC2DCN_syn[i].tau = 12
PC2DCN_syn[i].g = PC2DCN_syn[i].g*0.7
}
// Push ION into oscillations
objref stimION[8]
for i = 0,7 {
IONcell[i] stimION[i] = new IClamp(0.5)
stimION[i].amp = 5e-3
stimION[i].del = 1000
stimION[i].dur = 20
}
access DCNcell
// Record PC (Must be included)
objref rec_v_PC[40]
for i = 0,39 {
rec_v_PC[i] = new Vector()
rec_v_PC[i].record(&PCcell[i].v(0.5))
}
objectvar Vplot1, Vplot2 //, Vplot3
{
Vplot1 = new Graph(0)
Vplot1.size(0,tstop,-100,80)
{Vplot1.view(0, -100, tstop, 180, 500, 50, 700, 180)}
graphList[0].append(Vplot1)
Vplot1.save_name("graphList[0].")
Vplot1.addvar("PCcell[0].v( 0.5 )", 1, 1, 0.8, 0.9, 2)
Vplot1.addvar("DCNcell.v( 0.5 )", 2, 1, 0.8, 0.9, 2)
}
{
Vplot2 = new Graph(0)
Vplot2.size(0,tstop,-100,80)
{Vplot2.view(0, -100, tstop, 180, 500, 450, 700, 180)}
graphList[0].append(Vplot2)
Vplot2.save_name("graphList[0].")
// Vplot2.addvar("PJ_DCN_syn[0].s", 1, 1, 0.8, 0.9, 2)
Vplot2.addvar("IONcell[0].v( 0.5 )", 1, 1, 0.8, 0.9, 2)
}
//////////////////////////////////////////////////////////////////
// Simulation starts //
// //
// Set up synaptic transmission delays between PC-DCN and PC-NO //
proc advance() {
if (t>PC2DCN_delay) {
for i = 0,39 {
PC2DCN_syn[i].vpre = rec_v_PC[i].x[rec_v_PC[i].size()-PC2DCN_delay/dt] // PC2DCN_delay defined in syn_PC_DCN.hoc
PC2NO_syn[i].vpre = rec_v_PC[i].x[rec_v_PC[i].size()-PC2NO_delay/dt]
}
}
fadvance()
}
// //
run() //
// //
//////////////////////////////////////////////////////////////////