Ecologie : pourquoi est-ce si difficile de changer de comportement ?

Coralie Chevallier était l'invitée de Mathieu Vidard dans l'émission La Terre au Carré sur France Inter mercredi 28 août dernier.

Coralie Chevallier est chercheuse en sciences cognitives et en sciences du comportement à l’INSERM, au Laboratoire de Neurosciences Cognitives & Computationnelles. Ses recherches visent à identifier les mécanismes cognitifs et évolutionnaires qui guident nos décisions sociales. 

ANNULÉ - Deliberate ignorance: The curious choice not to know

Western history of thought abounds with claims that knowledge is valued and sought. Yet people often choose not to know. We call the conscious choice not to seek or use knowledge (or information) deliberate ignorance. Using examples from a wide range of domains, we demonstrate that deliberate ignorance has important functions. We systematize types of deliberate ignorance, describe their functions, discuss their normative desirability, and consider how they can be modeled. We conclude that the desire not to know is no anomaly.

Metacontrol of reinforcement learning

Modern theories of reinforcement learning posit two systems competing for control of behavior: a "model-free" or "habitual" system that learns cached state-action values, and a "model-based" or  "goal-directed" system that learns a world model which is then used to plan actions. I will argue that humans can adaptively invoke model-based computation when its benefits outweigh its costs. A simple meta-control learning rule can capture the dynamics of this cost-benefit analysis. Neuroimaging evidence points to the role of cognitive control regions in this computation.

A natural history of song

Theories of the origins of music claim that the music faculty is shaped by the functional design of the human mind. On these ideas, musical behavior and musical structure are expected to exhibit species-wide regularities: music should be characterized by human universals. Many cognitive and evolutionary scientists intuitively accept this idea but no one has any good evidence for it. Most scholars of music, in contrast, intuitively accept the opposite position, citing the staggering diversity of the world’s music as evidence that music is shaped mostly by culture.

Journée de Rencontres des Départements Scientifiques de l'ENS

Organisée par Yves Laszlo et Nicolas Baumard.

Cette journée de rencontre vise à promouvoir la collaboration scientifique entre départements et à créer de nouveaux projets interdisciplinaires.


9:30 INTRODUCTION - Yves Laszlo

9:45 COMPUTER SCIENCE
With presentations of collaborations with Biology and Cognitive Sciences

9:45 ‘Recent advances in machine learning’ Francis Bach