CCN Seminar with Srdjan Ostojic (ENS)

Date & Time


Flatiron Institute community members are cordially invited to a CCN Seminar with Srdjan Ostojic, Faculty Member at ENS. Srdjan’s talk title and abstract are below. 

To schedule a meeting with Srdjan during his visit, please be in touch with Jessica Hauser at [email protected]

Title: Generalisation through neural dynamics on non-linear manifolds

Abstract: Biological brains possess an unparalleled ability to adapt behavioral responses to changing stimuli and environments. How neural processes enable this capacity is a fundamental open question. We investigated the mechanisms underlying generalization and adaptation within the framework of flexible timing tasks where dynamics play a key role. Examining trained recurrent neural networks, we found that confining the dynamics to a low-dimensional subspace enabled networks to generalise to novel inputs and adapt to changing conditions. Reverse-engineering and theoretical analyses demonstrated that this phenomenon relies on a modulation of dynamics along non-linear manifolds. Comparisons with data from behaving monkeys confirmed the behavioral and neural signatures of this mechanism. (Joint work with the Jazayeri lab.)
 

Advancing Research in Basic Science and MathematicsSubscribe to Flatiron Institute announcements and other foundation updates