Séminaire
Neuromathématiques
Giovanna Citti (University of Bologna)
Jean-Pierre Nadal (CAMS - EHESS/CNRS)
Jean Petitot (CAMS - EHESS)
Jerome Ribot (Collège de France)
Alessandro Sarti (CAMS - EHESS/CNRS)
mardi 1 février 14h30-16h30
la séance ne se tiendra pas au Collège de France , 11, Place Marcelin-Berthelot, 75005, Paris
mais se déroulera en visioconférence
Inscription au lien https://participations.ehess.fr/
Romain Brette
Institut de la Vision, Paris
Integrative modeling of Paramecium, a “swimming neuron”
Abstract:
Paramecium is a unicellular organism that swims in fresh water using cilia. When it is stimulated (mechanically, chemically, optically, thermally, etc), it often swims backward then turns and swims forward again: this is called the avoiding reaction. This reaction is triggered by a calcium-based action potential. For this reason, it enjoyed a period of glory in the 1970s as a model organism for neuroscience. We have developed an integrative model that links electrophysiology and behavior, quantitatively constrained by experimental data. This model is a dynamical system coupled to the environment, which allows revisiting various neuroscientific themes (perception, adaptation, learning) in the context of an autonomous system, rather than within the stimulus-response paradigm.
Programme 2021-2022
7 décembre Davide Barbieri
1 février Romain Brette
1 mars Remco Duits
5 avril Vasiliki Liontou.