Self-organized criticality model for brain plasticity. (Articolo in rivista)

Type
Label
  • Self-organized criticality model for brain plasticity. (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • De Arcangelis L, Perrone-Capano C, Herrmann HJ. (2006)
    Self-organized criticality model for brain plasticity.
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • De Arcangelis L, Perrone-Capano C, Herrmann HJ. (literal)
Pagina inizio
  • 028107 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 96 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1Dept. of Information Engineering and CNISM, Second University of Naples, 81031 Aversa (CE), Italy 2Dept. of Biological Sciences, University of Naples \"Federico II\", 80134, Naples, Italy and IGB \"A. Buzzati Traverso,\" CNR, 80131 Naples, Italy 3Institute for Computer Applications 1, University of Stuttgart, Pfaffenwaldring 27, D-70569 Stuttgart, Germany (literal)
Titolo
  • Self-organized criticality model for brain plasticity. (literal)
Abstract
  • Networks of living neurons exhibit an avalanche mode of activity, experimentally found in organotypic cultures. Here we present a model that is based on self-organized criticality and takes into account brain plasticity, which is able to reproduce the spectrum of electroencephalograms (EEG). The model consists of an electrical network with threshold firing and activity-dependent synapse strengths. The system exhibits an avalanche activity in a power-law distribution. The analysis of the power spectra of the electrical signal reproduces very robustly the power-law behavior with the exponent 0.8, experimentally measured in EEG spectra. The same value of the exponent is found on small-world lattices and for leaky neurons, indicating that universality holds for a wide class of brain models. (literal)
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