Dynamics of visual perception and collective neural activity
- 👤 Speaker: Professor Jochen Braun, University of Magdeburg 🔗 Website
- 📅 Date & Time: Wednesday 03 December 2014, 13:00 - 14:00
- 📍 Venue: Kenneth Craik Room, Craik-Marshall Building, Downing Site
Abstract
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.
Series This talk is part of the Craik Club series.
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Wednesday 03 December 2014, 13:00-14:00