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Authors: José Luis Martínez Pérez 1 and Antonio Barrientos Cruz 2

Affiliations: 1 Grupo de Robotica y Cibernetica. Universidad Politecnica de Madrid., Spain ; 2 Universidad Politécnica De Madrid, Spain

Keyword(s): Electroencephalography, Brain Computer Interface, Linear Discriminant Analysis, Spectral Analysis, Biomedical signal detection, Pattern recognition.

Related Ontology Subjects/Areas/Topics: Biocomputing and Biochips ; Biomechanical Devices ; Biomedical Engineering ; Biomedical Instruments and Devices ; Biorobotics ; Embedded Signal Processing

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 several formats:
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 (BIOSTEC 2009) - BIODEVICES; ISBN 978-989-8111- 64-7; ISSN 2184-4305, SciTePress, pages 186-191. DOI: 10.5220/0001512801860191

@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 (BIOSTEC 2009) - BIODEVICES},
year={2009},
pages={186-191},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001512801860191},
isbn={978-989-8111- 64-7},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2009) - BIODEVICES
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
IS - 2184-4305
AU - Martínez Pérez, J.
AU - Barrientos Cruz, A.
PY - 2009
SP - 186
EP - 191
DO - 10.5220/0001512801860191
PB - SciTePress

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