Correlation based learning from spike timing dependent plasticity

M. C. W. van Rossum, Gina G. Turrigiano

Research output: Contribution to journalArticlepeer-review

Abstract

We explore a synaptic plasticity model where potentiation and depression are induced by precisely timed pairs of synaptic events and postsynaptic spikes. We include the observation that strong synapses undergo relatively less potentiation than weak synapses, whereas depression is independent of synaptic strength. After random stimulation the synaptic weights reach a stable equilibrium distribution. Competition can be introduced separately by a mechanism that scales synaptic strengths as a function of postsynaptic activity. The plasticity rules select inputs which have a strong correlation with other inputs.
Original languageEnglish
Pages (from-to)409 - 415
Number of pages7
JournalNeurocomputing
Volume38 - 40
DOIs
Publication statusPublished - 2001

Keywords

  • Hebbian plasticity
  • Synaptic competition
  • Activity dependent scaling
  • Temporal learning

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