Identification of functional synaptic plasticity from spiking activities using nonlinear dynamical modeling

Dong Song, Rosa H.M. Chan, Brian S. Robinson, Vasilis Z. Marmarelis, Ioan Opris, Robert E. Hampson, Sam A. Deadwyler, Theodore W. Berger

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper presents a systems identification approach for studying the long-term synaptic plasticity using natural spiking activities. This approach consists of three modeling steps. First, a multi-input, single-output (MISO), nonlinear dynamical spiking neuron model is formulated to estimate and represent the synaptic strength in means of functional connectivity between input and output neurons. Second, this MISO model is extended to a nonstationary form to track the time-varying properties of the synaptic strength. Finally, a Volterra modeling method is used to extract the synaptic learning rule, e.g., spike-timing-dependent plasticity, for the explanation of the input-output nonstationarity as the consequence of the past input-output spiking patterns. This framework is developed to study the underlying mechanisms of learning and memory formation in behaving animals, and may serve as the computational basis for building the next-generation adaptive cortical prostheses.

Original languageEnglish (US)
Pages (from-to)123-135
Number of pages13
JournalJournal of Neuroscience Methods
Volume244
DOIs
StatePublished - Apr 5 2015
Externally publishedYes

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Neuronal Plasticity
Learning
Neurons
Prostheses and Implants

Keywords

  • Learning rule
  • Spatio-temporal pattern
  • Spike
  • Spike-timing-dependent plasticity

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Identification of functional synaptic plasticity from spiking activities using nonlinear dynamical modeling. / Song, Dong; Chan, Rosa H.M.; Robinson, Brian S.; Marmarelis, Vasilis Z.; Opris, Ioan; Hampson, Robert E.; Deadwyler, Sam A.; Berger, Theodore W.

In: Journal of Neuroscience Methods, Vol. 244, 05.04.2015, p. 123-135.

Research output: Contribution to journalArticle

Song, Dong ; Chan, Rosa H.M. ; Robinson, Brian S. ; Marmarelis, Vasilis Z. ; Opris, Ioan ; Hampson, Robert E. ; Deadwyler, Sam A. ; Berger, Theodore W. / Identification of functional synaptic plasticity from spiking activities using nonlinear dynamical modeling. In: Journal of Neuroscience Methods. 2015 ; Vol. 244. pp. 123-135.
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