 |
Conference papers
Improved estimation of EEG evoked potentials by jitter compensation and enhancing spatial filters
Abstract : We propose in this paper a new technique to investigate the Event-Related Potentials, or Evoked-Response Potentials, in the electroencephalographic signal. The multidimensional electroencephalographic signal is first spatially filtered to enhance the Evoked-Response Potentials using the xDAWN algorithm and, second, the single trial latencies (whatever their origins: physiological or electronical) are estimated by maximizing a cross correlation without any a priori model. The performance of this approach is illustrated on two classical P300-Speller electroencephalographic databases (BCI Competition II and III). The single-trial distribution of P300 Evoked-Response Potential is deblurred using the proposed resynchronization algorithm for applications in particular to Brain Computer Interfaces.
Keywords :
Event related potentials
Electroencephalographic signals
Cross correlations
Evoked-response potentials
Physiological models
Bioelectric potentials
Jitter
Jitter compensation
Resynchronization
Single trial
Spatial filters
Algorithms
Brain computer interface
Electroencephalography
Electrophysiology
https://hal-cea.archives-ouvertes.fr/cea-01830773
Contributor : Léna Le Roy Connect in order to contact the contributor
Submitted on : Thursday, July 5, 2018 - 1:12:54 PM
Last modification on : Friday, October 22, 2021 - 4:42:08 AM
Contributor : Léna Le Roy Connect in order to contact the contributor
Submitted on : Thursday, July 5, 2018 - 1:12:54 PM
Last modification on : Friday, October 22, 2021 - 4:42:08 AM
`