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BP: Fachverband Biologische Physik

BP 20: Neurobiophysics

BP 20.9: Talk

Wednesday, March 16, 2011, 12:45–13:00, ZEU 250

Plasticity in a Spiking Neural Network Model — •Cornelia Petrovic and Rudolf Friedrich — Westfälische Wilhelms-Universität Münster, Institut für Theoretische Physik

We study the influence of spike-timing-dependent plasticity (STDP) in a spiking neuronal network which consists of pulse-coupled phase oscillators introduced by Haken as the lighthouse model [1]. It is a single neuron model that falls between spiking neuron models and firing rate descriptions and thus combines "best of both worlds". In the limit of slow synaptic interactions it can be reduced to the classic Wilson-Cowan and Amari type firing rate models [2,3,4]. For fast synaptic dynamics, it shows some of the complex properties of spiking neural networks.

[1] H. Haken, Brain Dynamics, Springer-Verlag, New York, Berlin, 2002.

[2] H.R. Wilson and J.D. Cowan, Biophys. J., 12 (1972), pp. 1-24.

[3] S. Amari, IEEE Trans. Systems Man Cybernet., 2 (1972), pp. 643-657.

[4] C.C. Chow and S. Coombes, SIAM J.Appl. Dyn. Syst., 5 (4) (2006), pp. 552-574.