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Neural fields and Riemannian geometry as models for how colors and color edges may be represented in visual area V1| old_uid | 14527 |
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| title | Neural fields and Riemannian geometry as models for how colors and color edges may be represented in visual area V1 |
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| start_date | 2014/10/22 |
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| schedule | 15h15-16h |
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| online | no |
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| summary | Neural fields and Riemannian geometry as models for how colors and color edges may be represented in visual area V1. I first go through some basic facts about the neurophysiological bases of color representation and processing in early visual areas, then continue with the psychophysics of color perception and discrimination, covering Hering's theory of color opponency and the Riemannian structure of color space in humans. Building on this I propose to describe color related activity in V1 with the formalism of neural fields theory and I relate it to previous work with Pascal Chossat on the representation in V1 of visual edges with the structure tensor. Based on this I speculate on the possibility of observing certain spontaneous patterns of activity in V1. |
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| responsibles | Petitot |
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