ACMS Applied Math Seminar: Nicolas Brunel

Wed Dec 10, 2014 3:00PM - 4:00PM • Calendars: Applied Math Seminar

Nicolas Brunel
Department of Statistics and Neurobiology, University of Chicago

Deciphering learning rules in cerebral cortex

Understanding the mechanisms of learning and memory in the cerebral cortex is one of the major challenges in neuroscience. The dominant theory holds that sensory inputs are ‘memorized’ by cortical circuits through changes of their synaptic connectivity, through a phenomenon called synaptic plasticity. Synaptic plasticity has been studied in the last four decades using in vitro preparations, and formalized by theorists as ‘learning rules’, but the exact rules governing how single synapses change as a function of the activity of pre- and post-synaptic neurons remain the subject of debate.  In this talk, I will present two complementary approaches for inferring learning rules in cortical synapses. The first consists in fitting a ‘minimal biophysical model’ to a set of in vitro experiments. The second consists in inferring a learning rule from in vivo data, using experiments comparing the statistics of responses of neurons to sets of novel and familiar stimuli.


















List of Speakers:

Oct. 1 Dervis Can Vural - Physics
Oct. 8 Tim Weninger - Computer Science and Engineering
Oct. 15 Zhangli Peng -  Aerospace and Mechanical Engineering
Oct. 29 Joel Boerckel - Aerospace and Mechanical Engineering
Nov. 5 CANCELLED - Joseph Powers (Rescheduled date TBD)
Nov. 12 Ling Xu - Applied and Computational Mathematics and Statistics
Nov. 19 Pinar Zorlutuna - Aerospace and Mechanical Engineering
Dec. 3 Amy Buchmann - Applied and Computational Mathematics and Statistics
Dec. 10 Nicolas Brunel - Department of Statistics and Neurobiology, University of Chicago


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