A Non-Orthogonal SVD-based Decomposition for Phase Invariant Error-Related Potential Estimation

Ronald Phlypo 1, * Nisrine Jrad 1 Sandra Rousseau 1 Marco Congedo 1
* Corresponding author
1 GIPSA-VIBS - VIBS
GIPSA-DIS - Département Images et Signal
Abstract : The estimation of the Error Related Potential from a set of trials is a challenging problem. Indeed, the Error Related Potential is of low amplitude compared to the ongoing electroencephalographic activity. In addition, simple summing over the different trials is prone to errors, since the waveform does not appear at an exact latency with respect to the trigger. In this work, we propose a method to cope with the discrepancy of these latencies of the Error Related Potential waveform and offer a framework in which the estimation of the Error Related Potential waveform reduces to a simple Singular Value Decomposition of an analytic waveform representation of the observed signal. The followed approach is promising, since we are able to explain a higher portion of the variance of the observed signal with fewer components in the expansion.
Complete list of metadatas

https://hal.inria.fr/hal-00641447
Contributor : Ronald Phlypo <>
Submitted on : Monday, November 21, 2011 - 4:40:30 PM
Last modification on : Tuesday, October 23, 2018 - 2:34:04 PM
Long-term archiving on : Wednesday, February 22, 2012 - 2:21:08 AM

Files

manuscript.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00641447, version 1

Citation

Ronald Phlypo, Nisrine Jrad, Sandra Rousseau, Marco Congedo. A Non-Orthogonal SVD-based Decomposition for Phase Invariant Error-Related Potential Estimation. 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Armentano Ricardo and Hudson Donna, Aug 2011, Boston, United States. pp.6963 - 6966. ⟨hal-00641447v1⟩

Share

Metrics

Record views

28

Files downloads

97