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Nous sommes un laboratoire de recherche publique situé à Paris spécialisé dans la psychophysique expérimentale et la psychologie développementale de la perception, de l´action, et du langage. Pour plus d’informations sur le LPP cliquez sur les liens à gauche.
Le LPP est une unité mixte Université Paris Descartes – CNRS – ENS. Pour le CNRS, nous sommes rattachés au département des sciences du vivant (section 27)
Notre rapport est disponible ici.

Notre directeur est Florian WASZAK
et notre directeur adjoint est Thierry NAZZI

Event Information:

  • lun
    10
    Déc
    2018

    LPP seminar: Florent Meyniel, CEA-Saclay, NeuroSpin

    11hSalle de réunion du LPP, H432, 4ème étage, Centre Biomédical des Saints Pères 45 rue des Sts Pères, 75006 Paris

    Learning in changing environments

    People often take advantage of trends and regularities that they detect in their environment to adapt their behavior. It is true even when such trends actually change across time, as it is often the case in real-world, dynamic environments. In this talk, I will characterize some properties of the powerful machinery that the human brain uses to perform such a statistical inference, based on behavioral data, functional magnetic resonance imaging (fMRI), magneto- and electroencephalography (M-EEG) and computational modeling. Notably, this machinery is:
    (1) Based on an estimation of transition probabilities between successive observations.
    (2) Bayesian: people use and estimate uncertainty in a rational manner.
    (3) Accessible to introspection: people can report both the estimated probabilities of future observations and the confidence that accompanies their inference.
    (4) Flexible, because it gives more weight to recent observations, which is indeed optimal in dynamic environments.
    (5) Hierarchical: it disentangles distinct but inter-related sources of uncertainties.