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Fundamental Themes in Neurosciences - Rui Costa

April 16, 2015 - 12:00pm to 1:00pm
Clark Center Auditorium

 

Generating and shaping novel action repertoires

 

Rui Costa, D.V.M., Ph.D. Professor, -Champalimaud Neuroscience Program, Champalimaud Center for the Unknown

Host: Talia Lerner 

Abstract

Some actions are innate or prewired (such as swallowing or breathing). Others are learned anew throughout life, likely through a process of trial and feedback. We used electrophysiology, imaging and optogenetics in behaving animals to understand how novel self-paced actions are generated, and how specific actions that lead to particular outcomes are then selected. We uncovered that dopamine is critical for the initiation of novel actions, and that plasticity in cortico-basal ganglia circuits is necessary for action selection. Furthermore, as actions are shaped they become organized into chunks, and neural substrates of parsing and concatenation of motor chunks emerge in basal ganglia circuits.

Event Sponsor: 
Stanford Neurosciences Institute
Contact Email: 
neuroscience@stanford.edu
Contact Phone: 
650-497-8019

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