"How to sample a reliable neural estimate of the variable world"

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• Mikko Juusola, Professor of Systems Neuroscience, University of Sheffield
• Monday 10 October 2016, 16:30-18:00
• The Hodgkin Huxley Seminar Room, Department of Physiology Development and Neuroscience.

If you have a question about this talk, please contact Lyn Dakin.

Abstract: The world is variable and dynamic. Its matter/energy is clustered into changing structures and events encompassing macro- and micro-scales. The central problem facing all animals is how to best sample a reliable estimate of the world when the estimation itself is limited by variations in their neural machineries and by the uncertainty of their surroundings. New results suggest that rather than working against variability, evolution works with it, giving rise to reliable and robust information sampling and representation in the nervous tissue. Photoreceptors sample visual information stochastically and weight it against fluctuating responses of their neighbours. Such anti-aliased sampling improves neural estimates of intensity changes in image pixels. Visual interneurones further adaptively sample and integrate synaptic information of photoreceptors to improve their estimates of the structure of the world. I will present new evidence for the hypothesis that variability in animals’ sensory systems is less noise and more a part of a solution to sample reliable estimates of the variable world.

This talk is part of the Adrian Seminars in Neuroscience series.

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