Stochastic synaptic plasticity in deterministic aVLSI networks of spiking neurons

E. Chicca, S. Fusi

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Stochastic learning solves the stability-plasticity problem (Fusi et al., 2000a) but raises new issues related to the generation of the proper noise driving the synaptic dynamics. Here we show that a simple, fully deterministic, spike-driven synaptic device can make use of the network generated vari- ability in the neuronal activity to drive the required stochastic mechanism. Randomness emerges naturally from the interaction of deterministic neu- rons, and no extra source of noise is needed. Learning and forgetting rates of the network can be easily controlled by changing the statistics of the spike trains without changing any inherent parameter of the synaptic dynamics.
Original languageEnglish
Title of host publicationProceedings of the World Congress on Neuroinformatics
EditorsF. Rattay
Place of PublicationVienna, Austria
PublisherARGESIM/ASIM Verlag
Pages468-477
Number of pages10
Publication statusPublished - 2001
Externally publishedYes

Publication series

NameARGESIM Reports
PublisherARGESIM/ASIM Verlag

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