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Theses

Codage par latence et STDP : des clés pour comprendre le traitement visuel rapide

Abstract : In the rapid visual processing theory, visual information is encoded in the firing latency of the cells, a scheme that readily explains its speed. In the present thesis, we show that, within this theory, spike timing-dependent plasticity (STDP) can explain the development of neural selectivities that will produce fast and selective responses. A neuron will indeed systematically tune to the earliest spikes through STDP, when the firing patterns elicited by a stimulus yield some form of temporal structure. This law leads, at the population level, to the emergence of representations inspired by the ventral stream, when the system is presented with natural images.
Besides we also show, through a psychophysical experiment, that rapid visual processing not only is accurate but that it also yields a quasi-invariance to stimulus rotation.
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https://tel.archives-ouvertes.fr/tel-00077613
Contributor : Catherine Marlot <>
Submitted on : Wednesday, May 31, 2006 - 2:17:53 PM
Last modification on : Friday, October 23, 2020 - 4:36:28 PM
Long-term archiving on: : Friday, November 25, 2016 - 11:01:22 AM

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  • HAL Id : tel-00077613, version 1

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Rudy Guyonneau. Codage par latence et STDP : des clés pour comprendre le traitement visuel rapide. Neurosciences [q-bio.NC]. Université Paul Sabatier - Toulouse III, 2006. Français. ⟨tel-00077613⟩

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