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Dynamics of visual perception and collective neural activity| old_uid | 15476 |
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| title | Dynamics of visual perception and collective neural activity |
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| start_date | 2015/04/08 |
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| schedule | 16h |
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| online | no |
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| location_info | 2e étage, salle 235C |
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| summary | Visual perception has all the hallmarks of an ongoing, cooperative-competitive process: probabilistic outcome, self-organization, order-disorder transitions, multi-stability, and hysteresis. Accordingly, it is tempting to speculate that the underlying collective neural activity performs an exploratory attractor dynamics (spontaneous transitions between distinct steady-states), perhaps at multiple spatial and temporal scales. Here I summarize our recent investigations of this dynamical hypothesis. In several instances, a careful empirical study of perceptual dynamics fully constrains an idealized model of the stochastic dynamics of collective neural activity. I conclude that the dynamical hypothesis outlined above permits a particularly close and direct back-and-forth between perceptual experiment and computational theory and thus has the potential to dramatically accelerate our progress in understanding visual function. |
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| responsibles | Mamassian |
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