def makeChannelPrototypes():
"""Create channel prototypes for readcell."""
library = moose.Neutral('/library')
moose.setCwe('/library')
compt = moose.SymCompartment('/library/symcompartment')
Em = EREST_ACT + 10.613e-3
compt.Em = Em
compt.initVm = EREST_ACT
compt.Cm = 7.85e-9 * 0.5
compt.Rm = 4.2e5 * 5.0
compt.Ra = 7639.44e3
nachan = moose.HHChannel('/library/Na')
nachan.Xpower = 3
xGate = moose.HHGate(nachan.path + '/gateX')
xGate.setupAlpha(Na_m_params + [VDIVS, VMIN, VMAX])
xGate.useInterpolation = 1
nachan.Ypower = 1
yGate = moose.HHGate(nachan.path + '/gateY')
yGate.setupAlpha(Na_h_params + [VDIVS, VMIN, VMAX])
yGate.useInterpolation = 1
nachan.Gbar = 0.942e-3
nachan.Ek = 115e-3 + EREST_ACT
kchan = moose.HHChannel('/library/K')
kchan.Xpower = 4.0
xGate = moose.HHGate(kchan.path + '/gateX')
xGate.setupAlpha(K_n_params + [VDIVS, VMIN, VMAX])
xGate.useInterpolation = 1
kchan.Gbar = 0.2836e-3
kchan.Ek = -12e-3 + EREST_ACT
def createSquid():
"""Create a single compartment squid model."""
parent = moose.Neutral('/n')
compt = moose.SymCompartment('/n/compt')
Em = EREST_ACT + 10.613e-3
compt.Em = Em
compt.initVm = EREST_ACT
compt.Cm = 7.85e-9 * 0.5
compt.Rm = 4.2e5 * 5.0
compt.Ra = 7639.44e3
nachan = moose.HHChannel('/n/compt/Na')
nachan.Xpower = 3
xGate = moose.HHGate(nachan.path + '/gateX')
xGate.setupAlpha(Na_m_params + [VDIVS, VMIN, VMAX])
xGate.useInterpolation = 1
nachan.Ypower = 1
yGate = moose.HHGate(nachan.path + '/gateY')
yGate.setupAlpha(Na_h_params + [VDIVS, VMIN, VMAX])
yGate.useInterpolation = 1
nachan.Gbar = 0.942e-3
nachan.Ek = 115e-3 + EREST_ACT
moose.connect(nachan, 'channel', compt, 'channel', 'OneToOne')
kchan = moose.HHChannel('/n/compt/K')
kchan.Xpower = 4.0
xGate = moose.HHGate(kchan.path + '/gateX')
xGate.setupAlpha(K_n_params + [VDIVS, VMIN, VMAX])
xGate.useInterpolation = 1
kchan.Gbar = 0.2836e-3
kchan.Ek = -12e-3 + EREST_ACT
moose.connect(kchan, 'channel', compt, 'channel', 'OneToOne')
return compt
def loadCell(self):
self.context.readCell('gran_aditya_migliore.p',self.path)
self._gran = moose.Cell(self.path)
self._granSoma = moose.Compartment(self.path+'/soma')
self._granSomaKA = moose.Compartment(self.path+'/soma/KA_ms')
self._granPeri = moose.Compartment(self.path+'/periphery')
self._granPeriNa = moose.HHChannel(self.path+'/periphery/Na_rat_ms')
self._granPeriKA = moose.HHChannel(self.path+'/periphery/KA_ms')
def make_Na():
if moose.exists('Na'):
return
Na = moose.HHChannel('Na')
Na.Ek = ENA # V
Na.Gbar = 300 * SOMA_A # S
Na.Gk = 0 # S
Na.Xpower = 2
Na.Ypower = 1
Na.Zpower = 0
xgate = moose.element('Na/gateX')
xA = numpy.array([
320e3 * (0.0131 + EREST_ACT), -320e3, -1.0,
-1.0 * (0.0131 + EREST_ACT), -0.004, -280e3 * (0.0401 + EREST_ACT),
280e3, -1.0, -1.0 * (0.0401 + EREST_ACT), 5.0e-3, 3000, -0.1, 0.05
])
xgate.alphaParms = xA
#xgate.alpha( 320e3 * (0.0131 + EREST_ACT), -320e3, -1.0, -1.0 * (0.0131 + EREST_ACT), -0.004 )
#xgate.beta( -280e3 * (0.0401 + EREST_ACT), 280e3, -1.0, -1.0 * (0.0401 + EREST_ACT), 5.0e-3 )
ygate = moose.element('Na/gateY')
yA = numpy.array([
128.0, 0.0, 0.0, -1.0 * (0.017 + EREST_ACT), 0.018, 4.0e3, 0.0, 1.0,
-1.0 * (0.040 + EREST_ACT), -5.0e-3, 3000, -0.1, 0.05
])
ygate.alphaParms = yA
def __init__(self,
name,
compartment,
specific_gbar,
e_rev,
Xpower,
Ypower=0.0,
Zpower=0.0):
"""Instantuate an ion channel.
name -- name of the channel.
compartment -- moose.Compartment object that contains the channel.
specific_gbar -- specific value of maximum conductance.
e_rev -- reversal potential of the channel.
Xpower -- exponent for the first gating parameter.
Ypower -- exponent for the second gatinmg component.
"""
self.path = "%s/%s" % (compartment.path, name)
self.chan = moose.HHChannel(self.path)
self.chan.Gbar = specific_gbar * compartment.area
self.chan.Ek = e_rev
self.chan.Xpower = Xpower
self.chan.Ypower = Ypower
self.chan.Zpower = Zpower
moose.connect(self.chan, "channel", compartment.C, "channel")
def create_k_proto():
lib = moose.Neutral('/library')
k = moose.HHChannel('/library/k')
k.Xpower = 4.0
xGate = moose.HHGate(k.path + '/gateX')
xGate.setupAlpha(K_n_params + [VDIVS, VMIN, VMAX])
return k
def make_LCa( name = 'LCa', parent = '/library' ):
if moose.exists( parent + '/' + name ):
return
Ca = moose.HHChannel( parent + '/' + name )
Ca.Ek = ECA
Ca.Gbar = 0
Ca.Gk = 0
Ca.Xpower = 2
Ca.Ypower = 1
Ca.Zpower = 0
xgate = moose.element( parent + '/' + name + '/gateX' )
xA = np.array( [ 1.6e3, 0, 1.0, -1.0 * (0.065 + EREST_ACT), -0.01389, -20e3 * (0.0511 + EREST_ACT), 20e3, -1.0, -1.0 * (0.0511 + EREST_ACT), 5.0e-3, 3000, -0.1, 0.05 ] )
xgate.alphaParms = xA
ygate = moose.element( parent + '/' + name + '/gateY' )
ygate.min = -0.1
ygate.max = 0.05
ygate.divs = 3000
yA = np.zeros( (ygate.divs + 1), dtype=float)
yB = np.zeros( (ygate.divs + 1), dtype=float)
#Fill the Y_A table with alpha values and the Y_B table with (alpha+beta)
dx = (ygate.max - ygate.min)/ygate.divs
x = ygate.min
for i in range( ygate.divs + 1 ):
if ( x > EREST_ACT):
yA[i] = 5.0 * math.exp( -50 * (x - EREST_ACT) )
else:
yA[i] = 5.0
yB[i] = 5.0
x += dx
ygate.tableA = yA
ygate.tableB = yB
return Ca
def make_K_AHP( name ):
if moose.exists( '/library/' + name ):
return
K_AHP = moose.HHChannel( '/library/' + name )
K_AHP.Ek = EK # V
K_AHP.Gbar = 8 * SOMA_A # S
K_AHP.Gk = 0 # S
K_AHP.Xpower = 0
K_AHP.Ypower = 0
K_AHP.Zpower = 1
K_AHP.useConcentration = 1
zgate = moose.element( K_AHP.path + '/gateZ' )
xmax = 0.02 # 20 micromolar.
zgate.min = 0
zgate.max = xmax
zgate.divs = 3000
zA = np.zeros( (zgate.divs + 1), dtype=float)
zB = np.zeros( (zgate.divs + 1), dtype=float)
dx = (zgate.max - zgate.min)/zgate.divs
x = zgate.min
for i in range( zgate.divs + 1 ):
zA[i] = min( 250.00 * CA_SCALE * x, 10 )
zB[i] = 1.0 + zA[i]
x = x + dx
zgate.tableA = zA
zgate.tableB = zB
addmsg1 = moose.Mstring( K_AHP.path + '/addmsg1' )
addmsg1.value = '../Ca_conc concOut . concen'
def K_SK_Chan(name):
K_SK = moose.HHChannel('/library/' + name)
K_SK.Ek = EK
K_SK.Gbar = 300.0 * SOMA_A
K_SK.Gk = 0.0
K_SK.Xpower = 0
K_SK.Ypower = 0
K_SK.Zpower = 3
K_SK.useConcentration = 1
cai = 2.4e-5
gbar = 0.01
beta = 0.03
cac = 0.00035
taumin = 0.5
q10 = 3
tadj = q10**((celsius - 22.0) / 10)
car = (ca / cac)**4
m_inf = car / (1 + car)
tau_m = 1 / beta / (1 + car) / tadj
tau_m[tau_m < taumin] = taumin
zgate = moose.element(K_SK.path + '/gateZ')
zgate.min = Camin
zgate.max = Camax
zgate.divs = Cadivs
zgate.tableA = m_inf / tau_m * 1e3
zgate.tableB = 1.0 / tau_m * 1e3
addmsg3 = moose.Mstring(K_SK.path + '/addmsg3')
addmsg3.value = '../Ca_conc concOut . concen'
return K_SK
def make_K_A(name):
if moose.exists('/library/' + name):
return
K_A = moose.HHChannel('/library/' + name)
K_A.Ek = EK # V
K_A.Gbar = 50 * SOMA_A # S
K_A.Gk = 0 # S
K_A.Xpower = 1
K_A.Ypower = 1
K_A.Zpower = 0
xgate = moose.element(K_A.path + '/gateX')
xA = np.array([
20e3 * (0.0131 + EREST_ACT), -20e3, -1.0, -1.0 * (0.0131 + EREST_ACT),
-0.01, -17.5e3 * (0.0401 + EREST_ACT), 17.5e3, -1.0,
-1.0 * (0.0401 + EREST_ACT), 0.01, 3000, -0.1, 0.05
])
xgate.alphaParms = xA
ygate = moose.element(K_A.path + '/gateY')
yA = np.array([
1.6, 0.0, 0.0, 0.013 - EREST_ACT, 0.018, 50.0, 0.0, 1.0,
-1.0 * (0.0101 + EREST_ACT), -0.005, 3000, -0.1, 0.05
])
ygate.alphaParms = yA
def KsAHP_Chan(name):
KsAHP = moose.HHChannel('/library/' + name)
KsAHP.Ek = EK
KsAHP.Gbar = 300.0 * SOMA_A
KsAHP.Gk = 0.0
KsAHP.Xpower = 0.0
KsAHP.Ypower = 0.0
KsAHP.Zpower = 3.0
KsAHP.useConcentration = 1
celsius = 36
gbar = 0.01
beta = 0.03e3
cac = 0.025
taumin = 0.5e-3
tadj = 3**((celsius - 22.0) / 10)
ca = np.arange(Camin, Camax + dCa, dCa)
car = (ca / cac)**2
m_inf = car / (1 + car)
tau_m = 1 / beta / (1 + car) / tadj
tau_m[tau_m < taumin] = taumin
zgate = moose.element(KsAHP.path + '/gateZ')
zgate.min = Camin
zgate.max = Camax
zgate.divs = Cadivs
zgate.tableA = m_inf / tau_m
zgate.tableB = 1.0 / tau_m
addmsg3 = moose.Mstring(KsAHP.path + '/addmsg3')
addmsg3.value = '../Ca_conc concOut . concen'
return KsAHP
def CaR_SChan(name):
CaR_S = moose.HHChannel('/library/' + name)
CaR_S.Ek = ECa
CaR_S.Gbar = 300.0 * SOMA_A
CaR_S.Gk = 0.0
CaR_S.Xpower = 3.0
CaR_S.Ypower = 1.0
CaR_S.Zpower = 0.0
celsius = 34
v = np.arange(Vmin, Vmax + dV, dV)
infm = 1.0 / (1 + np.exp((v + 60e-3) / (-3e-3)))
taum = 100e-3 + 0 * v
infh = 1.0 / (1 + np.exp((v + 62e-3) / (1e-3)))
tauh = 5e-3 + 0 * v
xgate = moose.element(CaR_S.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = infm / taum
xgate.tableB = 1.0 / taum
ygate = moose.element(CaR_S.path + '/gateY')
ygate.min = Vmin
ygate.max = Vmax
ygate.divs = Vdivs
ygate.tableA = infh / tauh
ygate.tableB = 1.0 / tauh
addmsg1 = moose.Mstring(CaR_S.path + '/addmsg1')
addmsg1.value = '. IkOut ../Ca_conc current'
return CaR_S
def CaT_Chan(name):
CaT = moose.HHChannel('/library/' + name)
CaT.Ek = ECa
CaT.Gbar = 300.0 * SOMA_A
CaT.Gk = 0.0
CaT.Xpower = 2.0
CaT.Ypower = 1.0
CaT.Zpower = 1.0
CaT.useConcentration = 1
CaT.instant = 4
tBase = 23.5
celsius = 22
gcatbar = 0
ki = 0.001
cai = 5.e-5
cao = 2
tfa = 1
tfi = 0.68
v = np.arange(Vmin, Vmax + dV, dV)
alph = 1.6e-1 * np.exp(-(v + 57e-3) / 19e-3)
beth = 1e3 / (np.exp((-v + 15e-3) / 10e-3) + 1.0)
alpm = 0.1967e6 * (-1.0 * v + 19.88e-3) / (np.exp(
(-1.0 * v + 19.88e-3) / 10.0e-3) - 1.0)
betm = 0.046e3 * np.exp(-v / 22.73e-3)
a = alpm
taum = 1.0 / (tfa * (a + betm))
minf = a / (a + betm)
a = alph
tauh = 1.0 / (tfi * (a + beth))
hinf = a / (a + beth)
xgate = moose.element(CaT.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = minf / taum
xgate.tableB = 1.0 / taum
ygate = moose.element(CaT.path + '/gateY')
ygate.min = Vmin
ygate.max = Vmax
ygate.divs = Vdivs
ygate.tableA = hinf / tauh
ygate.tableB = 1.0 / tauh
zgate = moose.element(CaT.path + '/gateZ')
zgate.min = Camin
zgate.max = Camax
zgate.divs = Cadivs
ca = np.arange(Camin, Camax + dCa, dCa)
zgate.tableA = ki / (ki + ca)
zgate.tableB = ki / (ki + ca)
#Does not activate calcium-dependent currents
addmsg4 = moose.Mstring(CaT.path + '/addmsg4')
addmsg4.value = '../Ca_conc concOut . concen'
return CaT
def h_Chan(name):
h = moose.HHChannel('/library/' + name)
h.Ek = Eh
h.Gbar = 300.0 * SOMA_A
h.Gk = 0.0
h.Xpower = 1.0
h.Ypower = 0.0
h.Zpower = 0.0
ena = 50e-3
K = 8.5e-3
vhalf = -81e-3
v = np.arange(Vmin, Vmax + dV, dV)
taun = 1e-3 + v * 0
taun[v <= -30e-3] = 5e-3 * (1 / (np.exp(
(v[v <= -30e-3] + 145e-3) / -17.5e-3) + np.exp(
(v[v <= -30e-3] + 16.8e-3) / 16.5e-3)) + 5)
ninf = 1 - (1 / (1 + np.exp((vhalf - v) / K)))
xgate = moose.element(h.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = ninf / taun
xgate.tableB = 1.0 / taun
return h
def KM_Chan(name):
KM = moose.HHChannel('/library/' + name)
KM.Ek = EK
KM.Gbar = 300.0 * SOMA_A
KM.Gk = 0.0
KM.Xpower = 1.0
KM.Ypower = 0.0
KM.Zpower = 0.0
vhalfl = -42e-3
kl = -4e-3
vhalft = -42e-3
a0t = 0.04e3
zetat = 4
gmt = 0.7
q10 = 5
b0 = 60e-3
celsius = 34
v = np.arange(Vmin, Vmax + dV, dV)
alpt = np.exp(0.0378e3 * zetat * (v - vhalft))
bett = np.exp(0.0378e3 * zetat * gmt * (v - vhalft))
qt = q10**((celsius - 35) / 10)
inf = (1.0 / (1 + np.exp((v - vhalfl) / kl)))
a = alpt
tau = b0 + bett / (a0t * (1 + a))
xgate = moose.element(KM.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = inf / tau
xgate.tableB = 1.0 / tau
return KM
def K_SK_Chan(name):
K_SK = moose.HHChannel('/library/' + name)
K_SK.Ek = EK
K_SK.Gbar = 300.0 * SOMA_A
K_SK.Gk = 0.0
K_SK.Xpower = 0.0
K_SK.Ypower = 0.0
K_SK.Zpower = 3.0
K_SK.useConcentration = 1
n = 4
cai = 50.e-6
a0 = 1.3e13
b0 = .5e-2
tfactor = 1
cahalf = 140.04e-6
k = 0.10857
alp = a0 * ca**n
a = alp
tau = tfactor * 1 / (a + b0)
inf = 1 / (1 + np.exp((np.log(cahalf / ca)) / k))
zgate = moose.element(K_SK.path + '/gateZ')
zgate.min = Camin
zgate.max = Camax
zgate.divs = Cadivs
zgate.tableA = inf / tau * 1e3
zgate.tableB = 1.0 / tau * 1e3
addmsg3 = moose.Mstring(K_SK.path + '/addmsg3')
addmsg3.value = '../Ca_conc concOut . concen'
return K_SK
def K_DR_Chan(name):
K_DR = moose.HHChannel('/library/' + name)
K_DR.Ek = EK
K_DR.Gbar = 300.0 * SOMA_A
K_DR.Gk = 0.0
K_DR.Xpower = 1.0
K_DR.Ypower = 0.0
K_DR.Zpower = 0.0
vhalfn = 13
a0n = 0.02
zetan = -3
gmn = 0.7
nmax = 2
q10 = 1
ntfactor = 1
qt = q10**((celsius - 24) / 10)
alpn = np.exp(1.e-3 * zetan * (v * 1e3 - vhalfn) * 9.648e4 /
(8.315 * (273.16 + celsius)))
betn = np.exp(1.e-3 * zetan * gmn * (v * 1e3 - vhalfn) * 9.648e4 /
(8.315 * (273.16 + celsius)))
ninf = 1 / (1 + alpn)
taun = ntfactor * betn / (qt * a0n * (1 + alpn))
taun[taun < nmax] = nmax
xgate = moose.element(K_DR.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = ninf / taun * 1e3
xgate.tableB = 1 / taun * 1e3
return K_DR
def make_HH_K(name='HH_K',
parent='/library',
vmin=-120e-3,
vmax=40e-3,
vdivs=3000):
"""Create a Hodhkin-Huxley K channel under `parent`.
vmin, vmax, vdivs: voltage range and number of divisions for gate tables
"""
k = moose.HHChannel('%s/%s' % (parent, name))
k.Ek = -77e-3
k.Xpower = 4
v = np.linspace(vmin, vmax, vdivs + 1) - EREST_ACT_HH
n_alpha = per_ms * (10 - v * 1e3) / (100 * (np.exp(
(10 - v * 1e3) / 10) - 1))
n_beta = per_ms * 0.125 * np.exp(-v * 1e3 / 80)
n_gate = moose.element('%s/gateX' % (k.path))
n_gate.min = vmin
n_gate.max = vmax
n_gate.divs = vdivs
n_gate.tableA = n_alpha
n_gate.tableB = n_alpha + n_beta
k.tick = -1
return k
def make_Na( name ):
if moose.exists( '/library/' + name ):
return
Na = moose.HHChannel( '/library/' + name )
Na.Ek = 0.055 # V
Na.Gbar = 300 * SOMA_A # S
Na.Gk = 0 # S
Na.Xpower = 2
Na.Ypower = 1
Na.Zpower = 0
xgate = moose.element( Na.path + '/gateX' )
xA = np.array( [ 320e3 * (0.0131 + EREST_ACT),
-320e3, -1.0, -1.0 * (0.0131 + EREST_ACT), -0.004,
-280e3 * (0.0401 + EREST_ACT), 280e3, -1.0,
-1.0 * (0.0401 + EREST_ACT), 5.0e-3,
3000, -0.1, 0.05 ] )
xgate.alphaParms = xA
ygate = moose.element( Na.path + '/gateY' )
yA = np.array( [ 128.0, 0.0, 0.0, -1.0 * (0.017 + EREST_ACT), 0.018,
4.0e3, 0.0, 1.0, -1.0 * (0.040 + EREST_ACT), -5.0e-3,
3000, -0.1, 0.05 ] )
ygate.alphaParms = yA
return Na
def createChanProto(libraryName, channelParams, rateParams):
# Create a library to store the channel prototypes
if not moose.exists(libraryName):
lib = moose.Neutral(libraryName)
else:
lib = moose.element(libraryName)
# Create the channel and set the powers and reversal potential
channel = moose.HHChannel(lib.path + '/' + channelParams.name)
channel.Ek = channelParams.Erev
channel.Xpower = channelParams.Xpow
channel.Ypower = channelParams.Ypow
# Define the activation gating kinetics if they exist
if channel.Xpower > 0:
xGate = moose.HHGate(channel.path + '/' + 'gateX')
xGate.setupAlpha(channelParams.Xparam + rateParams)
# Define the inactivation gating kinetics if they exist
if channel.Ypower > 0:
yGate = moose.HHGate(channel.path + '/' + 'gateY')
yGate.setupAlpha(channelParams.Yparam + rateParams)
# Set the tick for the channel so that it is set appropriately when it
# is copied to a channel from the library
channel.tick = -1
return channel
def make_HH_Na(name = 'HH_Na', parent='/library', vmin=-110e-3, vmax=50e-3, vdivs=3000):
"""Create a Hodhkin-Huxley Na channel under `parent`.
vmin, vmax, vdivs: voltage range and number of divisions for gate tables
"""
na = moose.HHChannel('%s/%s' % (parent, name))
na.Ek = 50e-3
na.Xpower = 3
na.Ypower = 1
v = np.linspace(vmin, vmax, vdivs+1) - EREST_ACT_HH
m_alpha = per_ms * (25 - v * 1e3) / (10 * (np.exp((25 - v * 1e3) / 10) - 1))
m_beta = per_ms * 4 * np.exp(- v * 1e3/ 18)
m_gate = moose.element('%s/gateX' % (na.path))
m_gate.min = vmin
m_gate.max = vmax
m_gate.divs = vdivs
m_gate.tableA = m_alpha
m_gate.tableB = m_alpha + m_beta
h_alpha = per_ms * 0.07 * np.exp(-v / 20e-3)
h_beta = per_ms * 1/(np.exp((30e-3 - v) / 10e-3) + 1)
h_gate = moose.element('%s/gateY' % (na.path))
h_gate.min = vmin
h_gate.max = vmax
h_gate.divs = vdivs
h_gate.tableA = h_alpha
h_gate.tableB = h_alpha + h_beta
na.tick = -1
return na
def setup_single_compartment(container_path, channel_proto, Gbar=1e-9):
comp = make_testcomp(container_path)
moose.context.copy(channel_proto.id, comp.id, channel_proto.name)
channel = moose.HHChannel('%s/%s' % (comp.path, channel_proto.name))
channel.connect('channel', comp, 'channel')
channel.Gbar = Gbar
pulsegen = make_pulsegen(container_path)
pulsegen.connect('outputSrc', comp, 'injectMsg')
vm_table = moose.Table('%s/Vm' % (container_path))
vm_table.connect('inputRequest', comp, 'Vm')
vm_table.stepMode = 3
gk_table = moose.Table('%s/Gk' % (container_path))
gk_table.connect('inputRequest', channel, 'Gk')
gk_table.stepMode = 3
moose.context.setClock(0, 1e-5)
moose.context.setClock(1, 1e-5)
moose.context.useClock(0, '%s/##[TYPE=Compartment]' % (container_path),
'init')
moose.context.useClock(1, '%s/##' % (container_path), 'process')
return {
'compartment': comp,
'stimulus': pulsegen,
'channel': channel,
'Vm': vm_table,
'Gk': gk_table
}
def K_D_Chan(name):
K_D = moose.HHChannel('/library/' + name)
K_D.Ek = EK
K_D.Gbar = 300.0 * SOMA_A
K_D.Gk = 0.0
K_D.Xpower = 1.0
K_D.Ypower = 0.0
K_D.Zpower = 0
vhalfn = -33
a0n = 0.005
zetan = 3
gmn = 0.7
nmax = 2
q10 = 1
sh = 0
gkdbar = .01e4
qt = q10**((celsius - 24) / 10)
a = np.exp(1.e-3 * zetan * (v * 1e3 - vhalfn - sh) * 9.648e4 /
(8.315 * (273.16 + celsius)))
ninf = 1 / (1 + a)
taun = np.exp(1.e-3 * zetan * gmn * (v * 1e3 - vhalfn - sh) * 9.648e4 /
(8.315 * (273.16 + celsius))) / (qt * a0n * (1 + a))
taun[taun < nmax] = nmax / qt
xgate = moose.element(K_D.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = ninf / taun * 1e3
xgate.tableB = 1.0 / taun * 1e3
return K_D
def K_Pst_Chan(name):
K_Pst = moose.HHChannel('/library/' + name)
K_Pst.Ek = EK
K_Pst.Gbar = 300.0 * SOMA_A
K_Pst.Gk = 0.0
K_Pst.Xpower = 2.0
K_Pst.Ypower = 1.0
K_Pst.Zpower = 0.0
qt = 2.3**((34 - 21) / 10)
V = v + 0.010
mInf = (1 / (1 + np.exp(-(V * 1e3 + 1) / 12)))
VV = V[V < -0.050]
mTau = (1.25 + 175.03 * np.exp(-VV * 1e3 * -0.026)) / qt
VV = V[V >= -0.050]
mTau = np.append(mTau, ((1.25 + 13 * np.exp(-VV * 1e3 * 0.026))) / qt)
hInf = 1 / (1 + np.exp(-(V * 1e3 + 54) / -11))
hTau = (360 + (1010 + 24 *
(V * 1e3 + 55)) * np.exp(-((V * 1e3 + 75) / 48)**2)) / qt
xgate = moose.element(K_Pst.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = mInf / mTau * 1e3
xgate.tableB = 1 / mTau * 1e3
ygate = moose.element(K_Pst.path + '/gateY')
ygate.min = Vmin
ygate.max = Vmax
ygate.divs = Vdivs
ygate.tableA = hInf / hTau * 1e3
ygate.tableB = 1 / hTau * 1e3
return K_Pst
def loadGran98NeuroML_L123(filename):
neuromlR = NeuroML()
populationDict, projectionDict = \
neuromlR.readNeuroMLFromFile(filename)
soma_path = populationDict['Gran'][1][0].path + '/Soma_0'
somaVm = setupTable('somaVm', moose.Compartment(soma_path), 'Vm')
somaCa = setupTable('somaCa', moose.CaConc(soma_path + '/Gran_CaPool_98'),
'Ca')
somaIKCa = setupTable('somaIKCa',
moose.HHChannel(soma_path + '/Gran_KCa_98'), 'Gk')
#KDrX = setupTable('ChanX',moose.HHChannel(soma_path+'/Gran_KDr_98'),'X')
soma = moose.Compartment(soma_path)
print("Reinit MOOSE ... ")
resetSim(['/elec', '/cells'], simdt, plotdt,
simmethod='ee') # from moose.utils
print("Running ... ")
moose.start(runtime)
tvec = arange(0.0, runtime, plotdt)
plot(tvec, somaVm.vector[1:])
title('Soma Vm')
xlabel('time (s)')
ylabel('Voltage (V)')
figure()
plot(tvec, somaCa.vector[1:])
title('Soma Ca')
xlabel('time (s)')
ylabel('Ca conc (mol/m^3)')
figure()
plot(tvec, somaIKCa.vector[1:])
title('KCa current (A)')
xlabel('time (s)')
ylabel('')
print("Showing plots ...")
show()
def K_A_Chan(name):
K_A = moose.HHChannel('/library/' + name)
K_A.Ek = EK
K_A.Gbar = 300.0 * SOMA_A
K_A.Gk = 0.0
K_A.Xpower = 1.0
K_A.Ypower = 1.0
K_A.Zpower = 0.0
vhalfn = 11
vhalfl = -56
a0l = 0.05
a0n = 0.05
zetan = -1.5
zetal = 3
gmn = 0.55
gml = 1
lmin = 2
nmin = 0.1
pw = -1
tq = -40
qq = 5
q10 = 5
qtl = 1
ntfactor = 1
ltfactor = 1
qt = q10**((celsius - 24) / 10)
zeta = zetan + pw / (1 + np.exp((v * 1e3 - tq) / qq))
alpn = np.exp(1.e-3 * zeta * (v * 1e3 - vhalfn) * 9.648e4 /
(8.315 * (273.16 + celsius)))
zeta = zetan + pw / (1 + np.exp((v * 1e3 - tq) / qq))
betn = np.exp(1.e-3 * zeta * gmn * (v * 1e3 - vhalfn) * 9.648e4 /
(8.315 * (273.16 + celsius)))
ninf = 1 / (1 + alpn)
taun = ntfactor * betn / (qt * a0n * (1 + alpn))
taun[taun < nmin] = nmin
alpl = np.exp(1.e-3 * zetal * (v * 1e3 - vhalfl) * 9.648e4 /
(8.315 * (273.16 + celsius)))
betl = np.exp(1.e-3 * zetal * gml * (v * 1e3 - vhalfl) * 9.648e4 /
(8.315 * (273.16 + celsius)))
linf = 1 / (1 + alpl)
taul = ltfactor * 0.26 * (v * 1e3 + 50) / qtl
taul[v < lmin / qtl] = lmin / qtl
xgate = moose.element(K_A.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = ninf / taun * 1e3
xgate.tableB = 1.0 / taun * 1e3
ygate = moose.element(K_A.path + '/gateY')
ygate.min = Vmin
ygate.max = Vmax
ygate.divs = Vdivs
ygate.tableA = linf / taul * 1e3
ygate.tableB = 1.0 / taul * 1e3
return K_A
def make_K_AHP():
if moose.exists('K_AHP'):
return
K_AHP = moose.HHChannel('K_AHP')
K_AHP.Ek = EK # V
K_AHP.Gbar = 8 * SOMA_A # S
K_AHP.Gk = 0 # S
K_AHP.Xpower = 0
K_AHP.Ypower = 0
K_AHP.Zpower = 1
zgate = moose.element('K_AHP/gateZ')
xmax = 500.0
zgate.min = 0
zgate.max = xmax
zgate.divs = 3000
zA = numpy.zeros((zgate.divs + 1), dtype=float)
zB = numpy.zeros((zgate.divs + 1), dtype=float)
dx = (zgate.max - zgate.min) / zgate.divs
x = zgate.min
for i in range(zgate.divs + 1):
if (x < (xmax / 2.0)):
zA[i] = 0.02 * x
else:
zA[i] = 10.0
zB[i] = zA[i] + 1.0
x = x + dx
zgate.tableA = zA
zgate.tableB = zB
addmsg1 = moose.Mstring('/library/K_AHP/addmsg1')
addmsg1.value = '../Ca_conc concOut . concen'
def K_M_Chan(name):
K_M = moose.HHChannel('/library/' + name)
K_M.Ek = EK
K_M.Gbar = 300.0 * SOMA_A
K_M.Gk = 0.0
K_M.Xpower = 1.0
K_M.Ypower = 0.0
K_M.Zpower = 0.0
vhalfl = -40
kl = -10
vhalft = -42
a0t = 0.009
zetat = 7
gmt = .4
q10 = 5
b0 = 60
st = 1
tfactor = 1
alpt = np.exp(0.0378 * zetat * (v * 1e3 - vhalft))
bett = np.exp(0.0378 * zetat * gmt * (v * 1e3 - vhalft))
qt = q10**((celsius - 35) / 10)
inf = (1 / (1 + np.exp((v * 1e3 - vhalfl) / kl)))
a = alpt
tau = tfactor * (b0 + bett) / (a0t * (1 + a))
xgate = moose.element(K_M.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = inf / tau * 1e3
xgate.tableB = 1.0 / tau * 1e3
return K_M
def make_K_A():
if moose.exists('K_A'):
return
K_A = moose.HHChannel('K_A')
K_A.Ek = EK # V
K_A.Gbar = 50 * SOMA_A # S
K_A.Gk = 0 # S
K_A.Xpower = 1
K_A.Ypower = 1
K_A.Zpower = 0
xgate = moose.element('K_A/gateX')
xA = numpy.array([
20e3 * (0.0131 + EREST_ACT), -20e3, -1.0, -1.0 * (0.0131 + EREST_ACT),
-0.01, -17.5e3 * (0.0401 + EREST_ACT), 17.5e3, -1.0,
-1.0 * (0.0401 + EREST_ACT), 0.01, 3000, -0.1, 0.05
])
xgate.alphaParms = xA
# xgate.alpha( 20e3 * (0.0131 + EREST_ACT), -20e3, -1.0, -1.0 * (0.0131 + EREST_ACT), -0.01 )
# xgate.beta( -17.5e3 * (0.0401 + EREST_ACT), 17.5e3, -1.0, -1.0 * (0.0401 + EREST_ACT), 0.01 )
ygate = moose.element('K_A/gateY')
yA = numpy.array([
1.6, 0.0, 0.0, 0.013 - EREST_ACT, 0.018, 50.0, 0.0, 1.0,
-1.0 * (0.0101 + EREST_ACT), -0.005, 3000, -0.1, 0.05
])
ygate.alphaParms = yA
def h_Chan(name):
h = moose.HHChannel('/library/' + name)
h.Ek = Eh
h.Gbar = 300.0 * SOMA_A
h.Gk = 0.0
h.Xpower = 1.0
h.Ypower = 0.0
h.Zpower = 0.0
vhalfl = -81
kl = -8
vhalft = -75
a0t = 0.011
zetal = 4
zetat = 2.2
gmt = .4
q10 = 4.5
qtl = 1
ltfactor = 1
alpt = np.exp(0.0378 * zetat * (v * 1e3 - vhalft))
bett = np.exp(0.0378 * zetat * gmt * (v * 1e3 - vhalft))
qt = q10**((celsius - 33) / 10)
a = alpt
linf = 1 / (1 + np.exp(-(v * 1e3 - vhalfl) / kl))
taul = ltfactor * bett / (qtl * qt * a0t * (1 + a))
xgate = moose.element(h.path + '/gateX')
xgate.min = Vmin
xgate.max = Vmax
xgate.divs = Vdivs
xgate.tableA = linf / taul * 1e3
xgate.tableB = 1.0 / taul * 1e3
return h
