STIC AmSud project 2009-2010


Project title

Robust single-trial evoked potential detection for brain-computer interfaces using computational intelligence techniques

Project goals

This proposal aim to develop computational intelligence techniques for pattern recognition of graphic elements (e.g. event-related potential, auditory evoked potential, k-complex, spindle) included in electro-encephalographic signals. More precisely, we want to develop adaptive computational intelligence techniques based on artificial neural networks, support vector machines and classical data analysis techniques to robustly detect evoked potentials in a single trial from noisy and multi-sources electro-encephalographic signals. The results of this work will be a comparison of the most powerful techniques developed and a complete procedure specifying the acquisition system parameters, the preprocessing techniques and a robust learning technique able to faster detect evoked potentials for brain-computer interfaces. This methodology will be available for other problems such as, in the medical domain, auditory evoked potential detection for automated newborn hearing screening and k-complex detection for automatic sleep scoring.

Abstract

ERP detection needs to average responses of repeated stimulations. New computational intelligence techniques such as flexible networks and averaging techniques can lead to a faster detection of graphic elements. Ensemble models based on support vector machines or neural networks can also help to increase the robustness of the system. These methods will be investigated to improve brain-computer interfaces.


Participants

Cortex project-team, INRIA Nancy – Grand Est, France

  • Frédéric Alexandre
  • Laurent Bougrain (international coordinator)
  • Axel hutt

Laboratory of Engineering Rehabilitation and Neuromuscular and Sensorial Research (L.I.R.I.N.S), Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Argentina

  • Rubén Acevedo
  • Gerardo Gentiletti (Argentina coordinator)
  • Carolina Tabernig

Department of Biomedical Engineering, Valparaíso University, Valparaiso, Chile

  • Stéren Chabert
  • Pablo Roncagliolo
  • Rodrigo Salas (Chilean coordinator)
  • Manuel Villalobos

Computer Science Department, Federico Santa María University, Valparaiso, Chile

  • Héctor Hallende
  • Carolina Saavedra

Laboratory of Neuro Imaging Research, Autonomous Metropolitan University, Mexico DF, Mexico

  • Erik Bojorges
  • Oscar Yanez

Events


Open access P300 speller large database

  • 21-30 April 2009: Starting meeting
    • Laurent Bougrain
    • Frédéric Alexandre
    • Rodrigo Salas
    • Héctor Hallende
    • Rubén Acevedo
    • Gerardo Gentiletti
  • 23-24 April 2009: the 2nd. Argentine Symposium on Brain-Computer Interfaces
    • Laurent Bougrain
    • Frédéric Alexandre
    • Rodrigo Salas
    • Héctor Hallende
    • Rubén Acevedo
    • Gerardo Gentiletti
  • 22-26 June 2009: coordinators’ meeting
    • Laurent Bougrain
    • Gerardo Gentiletti
  • 25-31 October 2009: Mid-project meeting
    • Laurent Bougrain
    • Axel Hutt
    • Rodrigo Salas
    • Héctor Hallende
    • Stéren Chabert
    • Rubén Acevedo
    • Gerardo Gentiletti
  • 27 October 2009: 1st Chilean BCI workshop
  • 29-30 October 2009: JCIB: 2nd Jornadas Chilenas de Ing. Biomédica
  • October 2010: NeuroComp 2010, French Conference on Computational Neuroscience