HH_Excitatory::HH_Excitatory()
{
MaxConductance_Siemens = 1000e-9;
ReversalPotential_V = -10.0e-3; /* Excitatory synapse reversal potential (mV) */
CalculateRates(0.0);
CalculateSteadyState();
}
HH_Inhibitory::HH_Inhibitory()
{
MaxConductance_Siemens = 1000 * 1.0e-9;
ReversalPotential_mV = -66.5; /* Inhibitory synapse reversal potential (mV) */
CalculateRates(0.0);
CalculateSteadyState();
}
Rothman93Inhibitory::Rothman93Inhibitory()
{
MaxConductance_Siemens = 1000e-9;
ReversalPotential_V = -66.5e-3; /* Inhibitory synapse reversal potential (mV) */
CalculateRates(0.0);
CalculateSteadyState();
}
HH_Leakage::HH_Leakage(double Temperature_DegreesC) :
HHChannelPopulation(0.0, Temperature_DegreesC)
{
MaxConductance_Siemens = 1.7 * TemperatureFactor_2() * 1.0e-9;
ReversalPotential_mV = 2.8; /* leakage reversal potential (milliVolts) */
CalculateRates(0.0);
CalculateSteadyState();
}
HH_NaInactivation::HH_NaInactivation(double InitialVoltage_mV, double Temperature_DegreesC) :
HHChannelPopulation(InitialVoltage_mV, Temperature_DegreesC)
{
MaxConductance_Siemens = 325. * TemperatureFactor_2() * 1.0e-9; // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2581]
ReversalPotential_mV = 55.0; // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2564]
CalculateRates(InitialVoltage_mV);
CalculateSteadyState();
}
HH_Kfast::HH_Kfast(double InitialVoltage_mV, double Temperature_DegreesC) :
HHChannelPopulation(InitialVoltage_mV, Temperature_DegreesC)
{
/* FAST POTASSIUM ACTIVATION VALUES (w) */
MaxConductance_Siemens = 40. * TemperatureFactor_2_5() * 1.0e-9; // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2581]
ReversalPotential_mV = -77.0; // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2564]
CalculateRates(InitialVoltage_mV);
CalculateSteadyState();
}
HH_Kslow::HH_Kslow(double InitialVoltage_V, double Temperature_DegreesC) :
HHChannelPopulation(InitialVoltage_V, Temperature_DegreesC)
{
/* SLOW POTASSIUM ACTIVATION VALUES (w) */
// Was: 20e-9 when we started fiddling
MaxConductance_Siemens = 20e-9 * TemperatureFactor_2_5(); // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2581]
ReversalPotential_V = -77.0e-3; // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2564]
CalculateRates(InitialVoltage_V);
CalculateSteadyState();
}
double HHChannelPopulation::GetDerivative(double IntermediateY, double InstantaneousVoltage_mV)
{
double dydt;
this->IntermediateY = IntermediateY;
CalculateRates(InstantaneousVoltage_mV);
dydt = ((1.0 - IntermediateY) * alpha) - (IntermediateY * beta);
return dydt;
}
Rothman03AHP::Rothman03AHP(double InitialVoltage_V, double Temperature_DegreesC) :
HHChannelPopulation(InitialVoltage_V, Temperature_DegreesC)
{
/* FAST POTASSIUM ACTIVATION VALUES (w) */
// MaxConductance_Siemens is not used; mAHPIncrement_Siemens used to increment conductance
//MaxConductance_Siemens = 40e-9 * TemperatureFactor_2_5(); // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2581]
MaxConductance_Siemens = 10000e-9; // Not used, but specify large value just in case
//ReversalPotential_V = -77.0e-3; // From Rothman 1993 (J Neurophys) [Vol 70 (6) p. 2564]
ReversalPotential_V = KReversalPotential_V; // KReversalPotential_V set in Rothman03Channels.h
CalculateRates(InitialVoltage_V);
CalculateSteadyState();
}
virtual void ParameterHasChanged(Parameter *p) {
if (p == this->gammashape)
CalculateRates();
}
