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: Comment: Kv3-like potassium current
NEURON {
SUFFIX Kv3_1
USEION k READ ek WRITE ik
RANGE gbar, g, ik
}
UNITS {
(S) = (siemens)
(mV) = (millivolt)
(mA) = (milliamp)
}
PARAMETER {
gbar = 0.00001 (S/cm2)
vshift = 0 (mV)
}
ASSIGNED {
v (mV)
ek (mV)
ik (mA/cm2)
g (S/cm2)
mInf
mTau
}
STATE {
m
}
BREAKPOINT {
SOLVE states METHOD cnexp
g = gbar*m
ik = g*(v-ek)
}
DERIVATIVE states {
rates()
m' = (mInf-m)/mTau
}
INITIAL{
rates()
m = mInf
}
PROCEDURE rates(){
UNITSOFF
mInf = 1/(1+exp(((v -(18.700 + vshift))/(-9.700))))
mTau = 0.2*20.000/(1+exp(((v -(-46.560 + vshift))/(-44.140))))
UNITSON
}
|
