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Stochastic incoherence in the response of rebound bursters

  Articoli su Riviste JCR/ISI  (anno 2010)

Autori:  Ciszak M

Affiliazione Autori:  CNR - Istituto Nazionale di Ottica Largo E Fermi 6, I-50125 Florence, Italy

Riassunto:  At an optimal value of the noise intensity, the maximum variability in rebound burst durations is observed and referred to as a response stochastic incoherence. A general mechanism underlying this phenomenon is given, being different from those reported so far in excitable systems. It is shown to be determined by (i) the monotonic reduction of the hysteresis responsible for bursting caused by noise and consequent transformation of responses from rebound bursts to single spikes, and (ii) a symmetry breaking in distributions of burst durations caused by the existence of the minimum response length. The phenomenon is studied numerically in a Morris-Lecar model for neurons and its mechanism is explained with the use of canonical models describing hard excitation states. (C) 2010 Elsevier B.V. All rights reserved.

Volume n.:  389 (12)      Pagine da: 2351  a: 2357
Ulteriori informazioni:  The author acknowledges a Marie Curie European Reintegration Grant (within a 7th European Community Framework Programme).
DOI: 10.1016/j.physa.2010.02.028

*Impact Factor della Rivista: (2010) 1.522   *Citazioni: 1
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  14/07/2019

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