ENCODING AND DECODING STIMULI USING A BIOLOGICALLY REALISTIC MODEL: THE NON-DETERMINISM IN SPIKE TIMINGS SEEN AS A DITHER SIGNAL

Khaled Masmoudi 1 Marc Antonini 2 Pierre Kornprobst 3
3 NEUROMATHCOMP
CRISAM - Inria Sophia Antipolis - Méditerranée , INRIA Rocquencourt, ENS Paris - École normale supérieure - Paris, UNS - Université Nice Sophia Antipolis, CNRS - Centre National de la Recherche Scientifique : UMR8548
Abstract : The mammalians retina conveys information by means of spike trains. Though, understanding the way these spike trains represent the stimuli is still a challenging issue, especially when considering their non-determinism. Interestingly, the spike-based code of the retina is binary-like, and thus we considered its study in a signal coding fashion. To do so, we specied a coding scheme based on the mean ring rate of spikes simulated by a realistic model of the mammalians retina. We, then, inverted the generated code to reconstruct the original input. Besides, we established some links between the processing occurring in the retina and state-of-the art methods in pure image coding. Finally, we gave a biologically plausible interpretation for the non-determinism in the spike ring timings.
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Communication dans un congrès
Research in Encoding And Decoding of Neural Ensembles (AREADNE 2010), Jun 2010, Santorini, Greece. paper 21, 2010
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Contributeur : Khaled Masmoudi <>
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Dernière modification le : mercredi 14 décembre 2016 - 01:06:10
Document(s) archivé(s) le : jeudi 16 septembre 2010 - 13:36:58

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Khaled Masmoudi, Marc Antonini, Pierre Kornprobst. ENCODING AND DECODING STIMULI USING A BIOLOGICALLY REALISTIC MODEL: THE NON-DETERMINISM IN SPIKE TIMINGS SEEN AS A DITHER SIGNAL. Research in Encoding And Decoding of Neural Ensembles (AREADNE 2010), Jun 2010, Santorini, Greece. paper 21, 2010. <hal-00481959>

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