BRAIN COMPUTER INTERFACE - Feedback Effect Analysis by Comparison of Discrimination Capability of On-line and Off-line Experimental Procedures based on LDA

José Luis Martínez Pérez, Antonio Barrientos Cruz

Abstract

This paper analyses 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.

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Paper Citation


in Harvard Style

Martínez Pérez J. and Barrientos Cruz A. (2009). BRAIN COMPUTER INTERFACE - Feedback Effect Analysis by Comparison of Discrimination Capability of On-line and Off-line Experimental Procedures based on LDA . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2009) ISBN 978-989-8111- 64-7, pages 186-191. DOI: 10.5220/0001512801860191


in Bibtex Style

@conference{biodevices09,
author={José Luis Martínez Pérez and Antonio Barrientos Cruz},
title={BRAIN COMPUTER INTERFACE - Feedback Effect Analysis by Comparison of Discrimination Capability of On-line and Off-line Experimental Procedures based on LDA},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2009)},
year={2009},
pages={186-191},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001512801860191},
isbn={978-989-8111- 64-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2009)
TI - BRAIN COMPUTER INTERFACE - Feedback Effect Analysis by Comparison of Discrimination Capability of On-line and Off-line Experimental Procedures based on LDA
SN - 978-989-8111- 64-7
AU - Martínez Pérez J.
AU - Barrientos Cruz A.
PY - 2009
SP - 186
EP - 191
DO - 10.5220/0001512801860191