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CA1 pyramidal neuron: depolarization block (Bianchi et al. 2012)
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Accession:
143719
NEURON files from the paper: On the mechanisms underlying the depolarization block in the spiking dynamics of CA1 pyramidal neurons by D.Bianchi, A. Marasco, A.Limongiello, C.Marchetti, H.Marie,B.Tirozzi, M.Migliore (2012). J Comput. Neurosci. In press. DOI: 10.1007/s10827-012-0383-y. Experimental findings shown that under sustained input current of increasing strength neurons eventually stop firing, entering a depolarization block. We analyze the spiking dynamics of CA1 pyramidal neuron models using the same set of ionic currents on both an accurate morphological reconstruction and on its reduction to a single-compartment. The results show the specic ion channel properties and kinetics that are needed to reproduce the experimental findings, and how their interplay can drastically modulate the neuronal dynamics and the input current range leading to depolarization block.
Reference:
1 .
Bianchi D, Marasco A, Limongiello A, Marchetti C, Marie H, Tirozzi B, Migliore M (2012) On the mechanisms underlying the depolarization block in the spiking dynamics of CA1 pyramidal neurons.
J Comput Neurosci
33
:207-25
[
PubMed
]
Model Information
(Click on a link to find other models with that property)
Model Type:
Neuron or other electrically excitable cell;
Brain Region(s)/Organism:
Hippocampus;
Cell Type(s):
Hippocampus CA1 pyramidal GLU cell;
Channel(s):
I Na,t;
I A;
I K;
I M;
I h;
I K,Ca;
I_AHP;
Gap Junctions:
Receptor(s):
GabaA;
AMPA;
NMDA;
Gene(s):
Transmitter(s):
Gaba;
Glutamate;
Simulation Environment:
NEURON;
Mathematica;
Model Concept(s):
Simplified Models;
Depolarization block;
Bifurcation;
Implementer(s):
Bianchi, Daniela [danielabianchi12 -at- gmail.com];
Limongiello, Alessandro [alessandro.limongiello at unina.it];
Search NeuronDB
for information about:
Hippocampus CA1 pyramidal GLU cell
;
GabaA
;
AMPA
;
NMDA
;
I Na,t
;
I A
;
I K
;
I M
;
I h
;
I K,Ca
;
I_AHP
;
Gaba
;
Glutamate
;
/
Ca1_Bianchi
lib
basic-graphics.hoc
*
Other models using basic-graphics.hoc:
CA1 pyramidal neuron: as a 2-layer NN and subthreshold synaptic summation (Poirazi et al 2003)
CA1 pyramidal neuron: synaptically-induced bAP predicts synapse location (Sterratt et al. 2012)
Fast Spiking Basket cells (Tzilivaki et al 2019)
L5 PFC microcircuit used to study persistent activity (Papoutsi et al. 2014, 2013)
Linear vs non-linear integration in CA1 oblique dendrites (Gómez González et al. 2011)
Modelling reduced excitability in aged CA1 neurons as a Ca-dependent process (Markaki et al. 2005)
Pyramidal neuron, fast, regular, and irregular spiking interneurons (Konstantoudaki et al 2014)
current-balance.hoc
*
Other models using current-balance.hoc:
Amyloid-beta effects on release probability and integration at CA3-CA1 synapses (Romani et al. 2013)
cut-sections.hoc
*
Other models using cut-sections.hoc:
Amyloid-beta effects on release probability and integration at CA3-CA1 synapses (Romani et al. 2013)
CA1 pyramidal neuron: as a 2-layer NN and subthreshold synaptic summation (Poirazi et al 2003)
CA1 pyramidal neuron: synaptically-induced bAP predicts synapse location (Sterratt et al. 2012)
Layer V PFC pyramidal neuron used to study persistent activity (Sidiropoulou & Poirazi 2012)
Linear vs non-linear integration in CA1 oblique dendrites (Gómez González et al. 2011)
Modelling reduced excitability in aged CA1 neurons as a Ca-dependent process (Markaki et al. 2005)
map-segments-to-3d.hoc
*
Other models using map-segments-to-3d.hoc:
Amyloid-beta effects on release probability and integration at CA3-CA1 synapses (Romani et al. 2013)
CA1 pyramidal neuron: as a 2-layer NN and subthreshold synaptic summation (Poirazi et al 2003)
CA1 pyramidal neuron: synaptic plasticity during theta cycles (Saudargiene et al. 2015)
CA1 pyramidal neuron: synaptically-induced bAP predicts synapse location (Sterratt et al. 2012)
Layer V PFC pyramidal neuron used to study persistent activity (Sidiropoulou & Poirazi 2012)
Linear vs non-linear integration in CA1 oblique dendrites (Gómez González et al. 2011)
Modelling reduced excitability in aged CA1 neurons as a Ca-dependent process (Markaki et al. 2005)
vector-distance.hoc
*
Other models using vector-distance.hoc:
Amyloid-beta effects on release probability and integration at CA3-CA1 synapses (Romani et al. 2013)
CA1 pyramidal neuron (Combe et al 2018)
CA1 pyramidal neuron: as a 2-layer NN and subthreshold synaptic summation (Poirazi et al 2003)
CA1 pyramidal neuron: dendritic Ca2+ inhibition (Muellner et al. 2015)
CA1 pyramidal neuron: synaptically-induced bAP predicts synapse location (Sterratt et al. 2012)
Layer V PFC pyramidal neuron used to study persistent activity (Sidiropoulou & Poirazi 2012)
Linear vs non-linear integration in CA1 oblique dendrites (Gómez González et al. 2011)
Modelling reduced excitability in aged CA1 neurons as a Ca-dependent process (Markaki et al. 2005)
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