Effects of intrinsic oscillations on weight dynamics under Spike timing-dependent plasticity

Fabiano Baroni (1) , Pablo Varona (1)

1 GNB, Escuela Politecnica Superior

Spike timing-dependent plasticity (STDP) is a form of Hebbian learning which is thought to underlie structure formation during development, and learning and memory in later life. In this paper we show that the intrinsic properties of the postsynaptic neuron might have a deep influence on STDP dynamics, by shaping the causal correlation between the pre and the postsynaptic spike trains. In particular, we show that a presynaptic subgroup with an oscillatory firing rate embedded in a set of uncorrelated afferents can be biased towards potentiation or depression, depending upon the intrinsic dynamics of the postsynaptic neuron and the period of the modulation.

Mots clés: Learning; Neuron and plasticity; Neuronal models; Synaptic plasticity

Domaines: Neurosciences [q-bio.NC]; Neurosciences

Fabiano Baroni, Pablo Varona. Effects of intrinsic oscillations on weight dynamics under Spike timing-dependent plasticity. Deuxième conférence française de Neurosciences Computationnelles, "Neurocomp08", Oct 2008, Marseille, France. ⟨hal-00331605⟩