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66 lines
1.3 KiB
66 lines
1.3 KiB
2 years ago
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TITLE Gly synapse
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COMMENT
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MODIFIED to be a faster GLY synapse, taken from GABA synapse
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Paul B. Manis - 7 Feb 2000
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simple alpha-synapse that generates a single PSP
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*********************************************
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reference: McCormick, Wang & Huguenard (1993)
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Cerebral Cortex 3(5), 387-398
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found in: cat reticular nucleus of thalamus
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*********************************************
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Assembled for MyFirstNEURON by Arthur Houweling
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ENDCOMMENT
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INDEPENDENT {t FROM 0 TO 1 WITH 1 (ms)}
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NEURON {
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POINT_PROCESS GlySynapse
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USEION cl READ ecl VALENCE 1
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: negative valence not accepted by nrnivmodl
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RANGE onset, gmaxIPSP, e, g, i, w
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NONSPECIFIC_CURRENT i
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}
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UNITS {
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(nA) = (nanoamp)
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(mV) = (millivolt)
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(nS) = (nanomho)
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}
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PARAMETER {
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onset= 25 (ms)
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gmaxIPSP= 0 (nS)
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w= 1 : weight factor for gmaxIPSP
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ecl (mV)
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v (mV)
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celsius (degC)
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}
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ASSIGNED {
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i (nA)
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g (nS)
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tadj
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}
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UNITSOFF
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INITIAL {
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tadj = 3^((celsius-23.5)/10)
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}
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BREAKPOINT { LOCAL tt
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tt= (t-onset)*tadj
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if ((t>onset)&&(tt<740)) {
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: the exp() function does not accept arguments smaller than -745
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g = w*gmaxIPSP * exp(-tt/15) * (1-exp(-tt/0.5))/0.84
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}
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else {g = 0}
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: -ecl because negative valences can not be specified
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i = g * (v-(-ecl))
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}
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UNITSON
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