L’ARC2 a la plaisir de soutenir la conférence du Professeur Alexandre Pouget, organisée par Brian Rudkin du Laboratoire de Biologie Moléculaire de la Cellule :


Date: 11:00 VENDREDI 20 NOVEMBRE, 2015

Lieu : ENS LYON – Site Monod, 46, allée d’Italie, 69007 Lyon  – Salle des Thèses Chantal Rabourdin-Combe


Probabilistic inferences in neural circuits: from insects to humans (to plants?) 

Prof. Alexandre POUGET 

University of Geneva Medical Center Department of Basic Neuroscience, Geneva, Switzerland &
Department of Brain and Cognitive Sciences University of Rochester, NY USA

A wide range of behaviors across all species can be formalized as instances of probabilistic inferences. This includes odor recognition, navigation, motor control, decision making, multisensory integration, visual search, simple arithmetic and causal reasoning in humans, to name just a few. We will show that, in many cases, the probabilistic inferences involved can be optimally implemented in simple, and biologically plausible, linear and nonlinear neural circuits. This raises the possibility that seemingly unrelated behaviors could in fact rely on very similar neural mechanisms across different species. In fact, it is quite possible that even plants uses similar type of computation for decision making, as the mechanism required for these computations could be just as easily implemented in the metabolic pathways of single cells, or populations thereof.

Selected references 

Ma, W.J., Beck, J., Latham, P.E. and Pouget, A. (2006). Bayesian inference with probabilistic population codesNature Neurosci. 9:1432-1438.

Ma, W..J., Navalpakkam, V., Beck, J., van den Berg, R. and Pouget, A. (2011). Behavior and neural basis of near-optimal visual searchNature Neurosci. 14:783-790.

Pouget, A., Beck, J., Ma, W..J. and Latham, P.E. (2013). Probabilistic brains: knowns and unknownsNature Neurosci. 16:1170-1178.

Host : Brian B. RUDKIN (bbrudkin@ens-lyon.fr