Cited by 131Neural dynamics and brain functionAdvanced Memory and Neural ComputingNeural Networks and Applications

Hebbian spike-driven synaptic plasticity for learning patterns of mean firing rates

Fusi, Stefano·2002·Biological Cybernetics

Abstract

Synaptic plasticity is believed to underlie the formation of appropriate patterns of connectivity that stabilize stimulus-selective reverberations in the cortex. Here we present a general quantitative framework for studying the process of learning and memorizing of patterns of mean spike rates. General considerations based on the limitations of material (biological or electronic) synaptic devices show that most learning networks share the palimpsest property: old stimuli are forgotten to make room for the new ones. In order to prevent too-fast forgetting, one can introduce a stochastic mechanism for selecting only a small fraction of synapses to be changed upon the presentation of a stimulus. Such a mechanism can be easily implemented by exploiting the noisy fluctuations in the pre- and postsynaptic activities to be encoded. The spike-driven synaptic dynamics described here can implement such a selection mechanism to achieve slow learning, which is shown to maximize the performance of the network as an associative memory.

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Crossref · 10.1007/s00422-002-0356-8

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  • We used binary synapses that undergo a stochastic Hebbian learning rule, namely that synaptic plasticity depends on coactivation of presynaptic and postsynaptic neurons and takes place probabilistically.

    “Specifically, we used binary synapses that undergo a stochastic Hebbian learning rule, namely that synaptic plasticity depends on coactivation of presynaptic and postsynaptic neurons and takes place probabilistically (Fusi, 2002; Fusi et al., 2007).”

    From Decision Making in Recurrent Neuronal Circuits (2008) · cites this paper as Fusi, 2002

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Authors
Fusi, S.
Affiliations
University of Bern (CH)
Corresponding author
Fusi, Stefano
Venue
Biological Cybernetics
Published
2002-12-01
Volume
87
Issue
5-6
Pages
459-470
ISSN
0340-1200 (ISSN-L)
OpenAlex
W2092001091
Cited by
131
References
42
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 2 · 2018: 2 · 2017: 3 · 2016: 12 · 2015: 4 · 2014: 9 · 2013: 6 · 2012: 3
FWCI
4.14
Type
journal article
Language
en
Open access
closed
Locations
  • Biological Cybernetics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Memory and Neural Computing
  • Physical Sciences › Computer Science › Artificial Intelligence › Neural Networks and Applications
Keywords
Hebbian learning, associative memory, forgetting, slow learning, pattern memorization
MeSH terms
Action Potentials, Animals, Learning, Mathematics, Memory, Nerve Net, Neuronal Plasticity, Neurons, Synapses, Time Factors

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