COMMENT
alphasynkint.mod
Alpha Synapse Traublike implemented with Kinetic Scheme as per
Chapter 10 NEURON book
Used to return peak conductance of 1, however now it is set so that
a peak conductance of tau2*exp(1) is reached because that's what
the Traub alpha function (tt_0)*exp((tt_0)/tau) reaches..
ENDCOMMENT
NEURON {
POINT_PROCESS AlphaSynKinT : ending T is for Traub, see notes
RANGE tau, e, i
NONSPECIFIC_CURRENT i
}
UNITS {
(nA) = (nanoamp)
(mV) = (millivolt)
(uS) = (microsiemens)
}
PARAMETER {
tau = 0.1 (ms) <1e9,1e9>
e = 0 (mV)
}
ASSIGNED {
v (mV)
i (nA)
}
STATE { a (microsiemens) g (uS) }
INITIAL {
g=0
}
BREAKPOINT {
SOLVE state METHOD sparse
i = g*(v  e)
}
KINETIC state {
~ a <> g (1/tau, 0)
~ g > (1/tau)
}
NET_RECEIVE(weight (uS)) {
: a = a + weight*exp(1) * (tau*exp(1))
: the above last factor changes peak conductance to from
: 1 to tau*exp(1) so formula becomes:
a = a + weight*tau*1(/ms)
}
