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Optimizing the Use of SSVEP-based BCIs for Human-Computer Interaction

This PhD deals with the design and evaluation of interactive systems based on Brain-Computer Interfaces (BCI). This kind of interface was developed first in order to provide disabled people with means of interaction and communication, and more recently in other application fields such as videogames for a larger audience. Up to now, most of the research on BCI has been focused on the identification of cerebral patterns carrying useful information, and on signal-processing techniques for the detection of these patterns. Less attention has been given to usability and interaction aspects, and to take into account human factors and the interactive system based on BCI as a whole.

Our PhD focuses on interactive systems based on BCI exploiting the Steady-State Visually Evoked Potential (SSVEP): a cerebral response that can appear when a user is looking at a flickering target, and can be used to propose menus with several targets flickering at different frequencies. We propose to study the interactive system as a whole, using the concepts of Human-Computer Interaction.

In this context, we first studied the cognitive demand related to the use of a BCI based on SSVEP. A second contribution focused on the frustration of a BCI user, depending on the BCI error rate. In a third contribution, we studied the influence of visual stimulus characteristics during the calibration of the signal processing pipeline. Thereafter, we proposed and tested an input fusion method for combining a BCI and a gaze tracking system. Finally, we designed a prototype of web browser fully based on BCI.

Speaker: 
Andéol Evain
Date: 
Tuesday, 6. December 2016 - 14:00 to 16:30
Place: 
IRISA Rennes - Salle Métivier
Defense Type: 
Composition of jury: 
  • Gernot Müller-Putz, Professeur, Université Technique de Graz / Rapporteur
  • Michel Beaudouin-Lafon, Professeur, Université Paris-Sud / Rapporteur
  • Maureen Clerc, Directrice de Recherche, Inria / Examinatrice
  • Thorsten Zander, Directeur de Recherche, Université Technique de Berlin / Examinateur
  • Nicolas Roussel, Directeur de Recherche, Inria / Encadrant
  • Géry Casiez, Professeur, Université de Lille / Encadrant
  • Ferran Argelaguet, Chargé de Recherche, Inria / Encadrant
  • Anatole Lécuyer, Directeur de Recherche, Inria / Directeur de thèse