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SUMMARY:CTN: Anna Schapiro
DESCRIPTION:Title: Learning representations of specifics and generalities over time\n\nAbstract: There is a fundamental tension between storing discrete traces of individual experiences\, which allows recall of particular moments in our past without interference\, and extracting regularities across these experiences\, which supports generalization and prediction in similar situations in the future. One influential proposal for how the brain resolves this tension is that it separates the processes anatomically into Complementary Learning Systems\, with the hippocampus rapidly encoding individual episodes and the neocortex slowly extracting regularities over days\, months\, and years. But this does not explain our ability to learn and generalize from new regularities in our environment quickly\, often within minutes. We have put forward a neural network model of the hippocampus that suggests that the hippocampus itself may contain complementary learning systems\, with one pathway specializing in the rapid learning of regularities and a separate pathway handling the region’s classic episodic memory functions. This proposal has broad implications for how we rapidly learn novel information of specific and generalized types\, which we test across statistical learning\, inference\, and category learning paradigms. We also explore how this system interacts with slower-learning neocortical memory systems\, with empirical and modeling investigations into how hippocampal replay shapes neocortical representations during sleep. Together\, the work helps us understand how structured information in our environment is initially encoded and how it then transforms over time.\nZoom: Available upon request @ arni@columbia.edu
URL:https://arni-institute.org/event/ctn-anna-schapiro/
LOCATION:Zuckerman Institute- Kavli Auditorium 9th Fl\, 3227 Broadway\, NY
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SUMMARY:ARNI Biological Learning Working Group
DESCRIPTION:Continuation from prior meetings about benchmarks and competition proposals. \nZoom Link: upon request @ ARNI@columbia.edu
URL:https://arni-institute.org/event/arni-biological-learning-working-group-4/
LOCATION:NY
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