MURAL - Maynooth University Research Archive Library



    Time-Skew Hebb Rule in a Nonisopotential Neuron


    Pearlmutter, Barak A. (1995) Time-Skew Hebb Rule in a Nonisopotential Neuron. Neural Computation, 7 (4). pp. 706-712. ISSN 0899-7667

    [img]
    Preview
    Download (166kB) | Preview


    Share your research

    Twitter Facebook LinkedIn GooglePlus Email more...



    Add this article to your Mendeley library


    Abstract

    In an isopotential neuron with rapid response, it has been shown that the receptive fields formed by Hebbian synaptic modulation depend on the principal eigenspace of Q(0), the input autocorrelation matrix, where Qij(τ) = 〈ξi(τ) ξj(t − T)〉 and ξi(t) is the input to synapse i at time t (Oja 1982). We relax the assumption of isopotentiality, introduce a time-skewed Hebb rule, and find that the dynamics of synaptic evolution are determined by the principal eigenspace of . This matrix is defined by , where Kij(τ) is the neuron's voltage response to a unit current injection at synapse j as measured τ seconds later at synapse i, and ψi(τ) is the time course of the opportunity for modulation of synapse i following the arrival of a presynaptic action potential.

    Item Type: Article
    Additional Information: This is the postprint version of the published article, which is available at doi:10.1162/neco.1995.7.4.706.
    Keywords: Time-Skew Hebb Rule; Nonisopotential Neuron; Hebbian synaptic modulation;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Item ID: 8135
    Identification Number: https://doi.org/10.1162/neco.1995.7.4.706
    Depositing User: Barak Pearlmutter
    Date Deposited: 07 Apr 2017 15:35
    Journal or Publication Title: Neural Computation
    Publisher: MIT Press
    Refereed: Yes
    URI:

    Repository Staff Only(login required)

    View Item Item control page

    Downloads

    Downloads per month over past year