STDP promotes synchrony of inhibitory networks in the presence of heterogeneity (Talathi et al 2008)

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Accession:119159
"Recently Haas et al. (J Neurophysiol 96: 3305–3313, 2006), observed a novel form of spike timing dependent plasticity (iSTDP) in GABAergic synaptic couplings in layer II of the entorhinal cortex. Depending on the relative timings of the presynaptic input at time tpre and the postsynaptic excitation at time tpost, the synapse is strengthened (delta_t = t(post) - t(pre) > 0) or weakened (delta_t < 0). The temporal dynamic range of the observed STDP rule was found to lie in the higher gamma frequency band (> or = 40 Hz), a frequency range important for several vital neuronal tasks. In this paper we study the function of this novel form of iSTDP in the synchronization of the inhibitory neuronal network. In particular we consider a network of two unidirectionally coupled interneurons (UCI) and two mutually coupled interneurons (MCI), in the presence of heterogeneity in the intrinsic firing rates of each coupled neuron. ..."
Reference:
1 . Talathi SS, Hwang DU, Ditto WL (2008) Spike timing dependent plasticity promotes synchrony of inhibitory networks in the presence of heterogeneity. J Comput Neurosci 25:262-81 [PubMed]
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Model Information (Click on a link to find other models with that property)
Model Type: Realistic Network;
Brain Region(s)/Organism: Entorhinal cortex;
Cell Type(s):
Channel(s): I Na,t; I K;
Gap Junctions:
Receptor(s): GabaA; Gaba;
Gene(s):
Transmitter(s):
Simulation Environment: C or C++ program;
Model Concept(s): STDP;
Implementer(s): Talathi Sachin [talathi at ufl.edu];
Search NeuronDB for information about:  GabaA; Gaba; I Na,t; I K;
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TalathiEtAl2008
simul_lrn
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/*--------------------------------------------------------------------------
   Author: Thomas Nowotny
  
   Institute: Institute for Nonlinear Dynamics
              University of California San Diego
              La Jolla, CA 92093-0402
  
   email to:  tnowotny@ucsd.edu
  
   initial version: 2005-08-17
  
--------------------------------------------------------------------------*/

#ifndef IDS_H
#define IDS_H

#define NEURTYPENO 28

#define TIMENEURON -1
#define HHNEURON 0
#define HHCANEURON 1
#define FNGMNEURON 2
#define ICANEURON 3
#define STUPIDNEURON 4
#define POISSONNEURON 5
#define VALNEURON 6
#define MULTIFIRE_INPUTNEURON 7
#define IFNEURON 8
#define KOLNEURON 9
#define KOLINNEURON 10
#define KOLMULTIFIRE_INPUTNEURON 11
#define LPNEURON 12
#define LPGNEURON 13
#define LPJNEURON 14
#define LPTNEURON 15
#define HVCE1 16
#define HVCI1 17
#define ECNEURON 18
#define LPANEURON 19
#define LPMNEURON 20
#define HRNEURON 21
#define LPRNEURON 22
#define PNRAMON 23
#define LNRAMON 24
#define PSEUDONEURON 25
#define KCDNEURON 26
#define LMPNEURON 27

#define SYNTYPENO 21

#define DCINPUT 0
#define DEMIGAP 1
#define RALL 2
#define ALINSYN 3
#define CRALL 4
#define DYNSTDP 5
#define HERA 6
#define LRNRALL 7
#define GRAD 8
#define KOLSYNAPSE 9
#define HEBBKOL 10
#define KOLGRADSYNAPSE 11
#define HVCSYN 12
#define ABSYN 13
#define ABECPLAST 14
#define SYNAS 15
#define ABECPLAST3 16
#define SYNASPLAST 17
#define RMSYN 18
#define sRMSYN 19
#define IRMSYN 20

#endif