Abstract:
:Recently we presented a stochastic, ensemble-based model of spike-timing-dependent plasticity. In this model, single synapses do not exhibit plasticity depending on the exact timing of pre- and postsynaptic spikes, but spike-timing-dependent plasticity emerges only at the temporal or synaptic ensemble level. We showed that such a model reproduces a variety of experimental results in a natural way, without the introduction of various, ad hoc nonlinearities characteristic of some alternative models. Our previous study was restricted to an examination, analytically, of two-spike interactions, while higher-order, multispike interactions were only briefly examined numerically. Here we derive exact, analytical results for the general n-spike interaction functions in our model. Our results form the basis for a detailed examination, performed elsewhere, of the significant differences between these functions and the implications these differences have for the presence, or otherwise, of stable, competitive dynamics in our model.
journal_name
Neural Computjournal_title
Neural computationauthors
Appleby PA,Elliott Tdoi
10.1162/neco.2007.19.5.1362subject
Has Abstractpub_date
2007-05-01 00:00:00pages
1362-99issue
5eissn
0899-7667issn
1530-888Xjournal_volume
19pub_type
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