:Reference : : Adams et al. 1982  Mcurrents and other potassium currents in bullfrog sympathetic neurones
:Comment: corrected rates using q10 = 2.3, target temperature 34, orginal 21
NEURON {
SUFFIX Im
USEION k READ ek WRITE ik
RANGE gImbar, gIm, ik
}
UNITS {
(S) = (siemens)
(mV) = (millivolt)
(mA) = (milliamp)
}
PARAMETER {
gImbar = 0.00001 (S/cm2)
}
ASSIGNED {
v (mV)
ek (mV)
ik (mA/cm2)
gIm (S/cm2)
mInf
mTau (ms)
mAlpha
mBeta
}
STATE {
m
}
BREAKPOINT {
SOLVE states METHOD cnexp
gIm = gImbar*m
ik = gIm*(vek)
}
DERIVATIVE states {
rates()
m' = (mInfm)/mTau
}
INITIAL{
rates()
m = mInf
}
PROCEDURE rates(){
LOCAL qt
qt = 2.3^((3421)/10)
UNITSOFF
mAlpha = 3.3e3*exp(2.5*0.04*(v  35))
mBeta = 3.3e3*exp(2.5*0.04*(v  35))
mInf = mAlpha/(mAlpha + mBeta)
mTau = (1/(mAlpha + mBeta))/qt
UNITSON
}
