Théorie des graphes et dynamique des connexions cérébrales pour la conception d'interfaces cerveau-machines asynchrones

To design brain-computer interfaces, this article aims at using the perturbations of the communication between dierent cortical areas due to a cognitive task. The network of the cerebral connections is built from correlations between cortical areas at specic frequencies and are analyzed using graph theory formalism which provides measures able to describe the topological organisation of the network. This method is applied to an auditive steady-state evoked potential experience and compared to a more classical method based on ltering.