Venue: Centre Broca
David Robbe
Team leader
INMED – Marseille
https://www.inmed.fr/
Invited by Giovanni Marsicano (Magendie)
Title
Disentangling the too many functions of the dorsal striatum in rats: from motor skill to sensitivity to motor cost
Abstract
A prominent theory in system neuroscience is that different forms of memories are stored in different brain regions/networks. Inside this framework, the dorsal striatum is believed to play a critical role in the storage and recall of motor skills and, more specifically, the goal-direct vs habitual selection of actions. In my talk, I will try demonstrate the conceptual weakness of these views by highlighting that tasks typically used to study motor skill do not separate high-level mnemonic/action selection functions from motivational constraints. I will present recent and ongoing work of our team (and others) that provide evidence that the dorsal striatum contribution to motor skill might be derived from a more fundamental contribution of this brain region to the sensitivity to movement costs, with potential implication to understand several brain disorders at the interface between movement and motivations.
Selected publications
Lost in time: Relocating the perception of duration outside the brain.
The Dorsal Striatum Energizes Motor Routines.
Response outcomes gate the impact of expectations on perceptual decisions.