CA1 network model for place cell dynamics (Turi et al 2019)

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Accession:246546
Biophysical model of CA1 hippocampal region. The model simulates place cells/fields and explores the place cell dynamics as function of VIP+ interneurons.
Reference:
1 . Turi GF, Li W, Chavlis S, Pandi I, O’Hare J, Priestley JB, Grosmark AD, Liao Z, Ladow M, Zhang JF, Zemelman BV, Poirazi P, Losonczy A (2019) Vasoactive Intestinal Polypeptide-Expressing Interneurons in the Hippocampus Support Goal-Oriented Spatial Learning Neuron
Citations  Citation Browser
Model Information (Click on a link to find other models with that property)
Model Type: Realistic Network;
Brain Region(s)/Organism: Hippocampus; Mouse;
Cell Type(s): Hippocampus CA1 pyramidal GLU cell; Hippocampus CA1 basket cell; Hippocampus CA1 basket cell - CCK/VIP; Hippocampus CA1 bistratified cell; Hippocampus CA1 axo-axonic cell; Hippocampus CA1 stratum oriens lacunosum-moleculare interneuron ; Hippocampal CA1 CR/VIP cell;
Channel(s): I A; I h; I K,Ca; I Calcium; I Na, leak; I K,leak; I M;
Gap Junctions:
Receptor(s): GabaA; GabaB; NMDA; AMPA;
Gene(s):
Transmitter(s):
Simulation Environment: NEURON; Brian;
Model Concept(s): Place cell/field;
Implementer(s): Chavlis, Spyridon [schavlis at imbb.forth.gr]; Pandi, Ioanna ;
Search NeuronDB for information about:  Hippocampus CA1 pyramidal GLU cell; GabaA; GabaB; AMPA; NMDA; I A; I K,leak; I M; I h; I K,Ca; I Calcium; I Na, leak;
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Turi_et_al_2018
mechanisms
ANsyn.mod *
bgka.mod *
burststim2.mod *
cad.mod
cadyn.mod *
cadyn_new.mod *
cagk.mod *
cal.mod *
calH.mod *
cancr.mod *
car.mod *
cat.mod *
ccanl.mod *
gskch.mod *
h.mod *
hha_old.mod *
hha2.mod *
hNa.mod *
IA.mod *
iccr.mod *
ichan2.mod *
ichan2aa.mod *
ichan2bc.mod *
ichan2bs.mod *
ichan2vip.mod *
Ih.mod *
Ihvip.mod *
ikscr.mod *
kad.mod *
kadistcr.mod *
kap.mod *
Kaxon.mod *
kca.mod *
Kdend.mod *
kdrcr.mod *
km.mod *
Ksoma.mod *
LcaMig.mod *
my_exp2syn.mod *
Naaxon.mod *
Nadend.mod *
nafcr.mod *
nap.mod *
Nasoma.mod *
nca.mod *
nmda.mod *
regn_stim.mod *
somacar.mod *
STDPE2Syn.mod *
vecstim.mod *
                            
: Slowly inactivating K+ channel

NEURON {
	SUFFIX IKscr
	USEION k READ ki, ko WRITE ik
	RANGE gKsbar, ik, gk
	
}

UNITS {
	(mA) = (milliamp)
	(mV) = (millivolt)
        (mM) = (milli/liter)
	
}
INDEPENDENT {t FROM 0 TO 1 WITH 1 (ms)}
PARAMETER {
	v (mV)
	dt (ms)
	gKsbar= 0.00014 (mho/cm2) <0,1e9>
	
}


STATE {
	a b
}


ASSIGNED {
	ik (mA/cm2)
	ainf binf
	atau (ms)
	btau (ms)
	gk (mho/cm2)
	ek  (mV)
	ki (mM)
	ko  (mM)
}



INITIAL {
	rate(v)
	a = ainf
	b = binf
}

BREAKPOINT {
	SOLVE states METHOD cnexp
		
	gk = gKsbar * a * b
	ek = 25 * log(ko/ki)
	ik = gk*(v-ek)
	
}

DERIVATIVE states {
	rate(v)
	
	a' = (ainf-a)/atau
	b' = (binf-b)/btau
}
UNITSOFF

PROCEDURE rate(v (mV)) {LOCAL va, vb, vc, vd
	
	
	va = v + 34
	vb = v + 65
	vd = v + 63.6
	

if (fabs(va)<1e-04){ va = va+0.00001 }
	   ainf = 1/(1 + exp(-va/6.5))
	   atau = 10
	  :atau=6
	

if (fabs(vb)<1e-04){ vb = vb+0.00001 }
	   binf = 1/(1 + exp(vb/6.6))

 
if (fabs(vd)<1e-04){ vd = vd+0.00001 }
	   btau = 200 + 3200 / (1 + exp(-vd/4))
	:btau = 200 + 3200 / (1 + exp(-vd/4))
}

	
UNITSON