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Single-trial estimation of neuronal firing rates: from single-neuron spike trains to population activity.
Nawrot M, Aertsen A, Rotter S.
Neurobiology and Biophysics, Institute of Biology III, Albert-Ludwigs-University, Freiburg, Germany.
We
present a method to estimate the neuronal firing rate from single-trial
spike trains. The method, based on convolution of the spike train with
a fixed kernel function, is calibrated by means of simulated spike
trains for a representative selection of realistic dynamic rate
functions. We derive rules for the optimized use and performance of the
kernel method, specifically with respect to an effective choice of the
shape and width of the kernel functions. An application of our
technique to the on-line, single-trial reconstruction of arm movement
trajectories from multiple single-unit spike trains using dynamic
population vectors illustrates a possible use of the proposed method.
PMID: 10638817 [PubMed - indexed for MEDLINE]
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