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DTSTART;TZID=America/New_York:20251219T113000
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SUMMARY:CTN: Roozbeh Kiani
DESCRIPTION:Seminar Time: 11:30am\nDate: 12/19/25\nSeminar Location: JLG\, L5-084\nHost: Tahereh Toosi\n\n \n\nTitle: Flexible decision-making: policies and rules\n \nAbstract: Flexible behavior requires flexible decision-making. We adapt seamlessly to changing environments—adjusting biases\, altering decision rules\, and inferring hidden task contexts—often without explicit cues. In this talk\, I will outline a framework that formalizes different levels of this flexibility and show how these adjustments are implemented in neural codes across the frontoparietal cortex. I will highlight three forms of decision flexibility: (1) Bias adjustments\, driven by asymmetric rewards\, shift neural activity along the decision variable axis;  (2) Rule changes\, such as varying sensory weights in a multi-feature discrimination task\, produce rotational changes in the population geometry\, supporting rapid changes in decision policy; and (3) Hierarchical inference\, where animals infer hidden contexts to adapt to task structure\, is reflected in the emergence of latent variables represented in distributed subspaces.
URL:https://arni-institute.org/event/ctn-roozbeh-kiani/
LOCATION:Zuckerman Institute – L5-084\, 3227 Broadway\, New York\, NY\, United States
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