Memorias de investigación
Ponencias en congresos:
Feedback effect analysis by comparison of discrimination capability of On-line and Off-line experimental procedures based on LDA
Año:2009
Áreas de investigación
  • Automática
Datos
Descripción
This paper analyzes the user¿s feedback influence in the mental task discrimination capability through the comparison of results obtained from Off-line and On-line Brain Computer Interface experimental procedures. Experiments performed under these two paradigms were carried out by five male volunteers. In order to develop a wearable BCI device only two electrodes in C3 and C4 zones have been used for electroencephalographic signal acquisition. These procedures apply seven different types of preprocessing windows and Linear Discrimination Analysis technique to reduce the dimension of the feature space before the quantification of the discrimination capability between the proposed mental activities.The discrimination capability is quantified through statistical analysis, based on bilateral contrast test, between the population of the LDA transformed feature vectors. As conclusions from the results of these experiments are: 1. The user¿s feedback influence provokes a lower discrimination capability, but enough to be used in an On-line BCI device. 2. The use of LDA technique allows to reduce the dimensionality of the input feature space, meanwhile it is maintained the discrimination capability between the proposed mental tasks. 3. The Tukey¿s and rectangular preprocessing windows improve the discrimination capability.
Internacional
Si
Nombre congreso
International Conference on Biomedical Electronics and Devices
Tipo de participación
960
Lugar del congreso
Oporto Portugal
Revisores
Si
ISBN o ISSN
978-989-8111-64-7
DOI
Fecha inicio congreso
14/01/2009
Fecha fin congreso
17/01/2009
Desde la página
186
Hasta la página
192
Título de las actas
Proceedings of the International Conference on Biomedical Electronics and Devices
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Robótica y Cibernética
  • Centro o Instituto I+D+i: Centro de Automática y Robótica (CAR). Centro Mixto UPM-CSIC
  • Departamento: Automática, Ingeniería Electrónica e Informática Industrial