Biophysically realistic neuron models for simulation of cortical stimulation (Aberra et al. 2018)

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Accession:241165
This archive instantiates the single-cell cortical models used in (Aberra et al. 2018) and sets up extracellular stimulation with either a point-current source, to simulate intracortical microstimulation (ICMS), or a uniform E-field distribution, with a monophasic, rectangular pulse waveform in both cases.
Reference:
1 . Aberra AS, Peterchev AV, Grill WM (2018) Biophysically realistic neuron models for simulation of cortical stimulation J. Neural Eng. [PubMed]
Model Information (Click on a link to find other models with that property)
Model Type: Neuron or other electrically excitable cell; Axon;
Brain Region(s)/Organism: Neocortex; Barrel cortex;
Cell Type(s): Myelinated neuron;
Channel(s):
Gap Junctions:
Receptor(s):
Gene(s):
Transmitter(s):
Simulation Environment: NEURON;
Model Concept(s): Action Potential Initiation; Detailed Neuronal Models;
Implementer(s): Aberra, Aman [aman.aberra at duke.edu];
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AberraEtAl2018
cells
L1_NGC-DA_bNAC219_4
mechanisms
Ca.mod *
Ca_LVAst.mod *
CaDynamics_E2.mod *
Ih.mod *
Im.mod *
K_Pst.mod *
K_Tst.mod *
Nap_Et2.mod *
NaTa_t.mod *
NaTs2_t.mod *
ProbAMPANMDA_EMS.mod *
ProbGABAAB_EMS.mod *
SK_E2.mod *
SKv3_1.mod *
                            
: Dynamics that track inside calcium concentration
: modified from Destexhe et al. 1994

NEURON	{
	SUFFIX CaDynamics_E2
	USEION ca READ ica WRITE cai
	RANGE decay, gamma, minCai, depth
}

UNITS	{
	(mV) = (millivolt)
	(mA) = (milliamp)
	FARADAY = (faraday) (coulombs)
	(molar) = (1/liter)
	(mM) = (millimolar)
	(um)	= (micron)
}

PARAMETER	{
	gamma = 0.05 : percent of free calcium (not buffered)
	decay = 80 (ms) : rate of removal of calcium
	depth = 0.1 (um) : depth of shell
	minCai = 1e-4 (mM)
}

ASSIGNED	{ica (mA/cm2)}

STATE	{
	cai (mM)
	}

BREAKPOINT	{ SOLVE states METHOD cnexp }

DERIVATIVE states	{
	cai' = -(10000)*(ica*gamma/(2*FARADAY*depth)) - (cai - minCai)/decay
}

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