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Authors: Fernando Rojas 1 ; Rodolfo V. García 2 ; Olga Valenzuela 1 ; Luis Velázquez 3 and Belén San Román 1

Affiliations: 1 University of Granada, Spain ; 2 University of Holguín, Cuba ; 3 Centre for the Research and Rehabilitation of Hereditary Ataxias, Cuba

Keyword(s): Biomedicine, Computer Aided Diagnosis, Electro-oculography, Independent Component Analysis, Blind Source Separation, Neural Networks.

Abstract: Abnormalities in the oculomotor system are well known clinical symptoms in patients of several neurodegenerative diseases, including modifications in latency, peak velocity, and deviation in saccadic movements, causing changes in the waveform of the patient response. The changes in the morphology waveform suggest a higher degree of statistic independence in sick patients when compared to healthy individuals regarding the patient response to the visual saccadic stimulus modeled by means of digital generated saccade waveforms. The electro-oculogram records of six patients diagnosed with ataxia SCA2 (a neurodegenerative hereditary disease) and six healthy subjects used as control were processed to extract saccades. We propose the application of a blind source separation algorithm (or independent component analysis algorithm) in order to find significant differences in the obtained estimations between healthy and sick subjects. These results point out the validity of independent compone nt analysis based techniques as an adequate tool in order to evaluate saccadic waveform changes in patients of ataxia SCA-2. (More)

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Paper citation in several formats:
Rojas, F.; García, R.; Valenzuela, O.; Velázquez, L. and San Román, B. (2009). A Blind Source Separation Algorithm for the Processing and Classification of Electro-oculogram Data. In Proceedings of the 5th International Workshop on Artificial Neural Networks and Intelligent Information Processing (ICINCO 2009) - Workshop ANNIIP; ISBN 978-989-674-002-3, SciTePress, pages 50-56. DOI: 10.5220/0002263200500056

@conference{workshop anniip09,
author={Fernando Rojas. and Rodolfo V. García. and Olga Valenzuela. and Luis Velázquez. and Belén {San Román}.},
title={A Blind Source Separation Algorithm for the Processing and Classification of Electro-oculogram Data},
booktitle={Proceedings of the 5th International Workshop on Artificial Neural Networks and Intelligent Information Processing (ICINCO 2009) - Workshop ANNIIP},
year={2009},
pages={50-56},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002263200500056},
isbn={978-989-674-002-3},
}

TY - CONF

JO - Proceedings of the 5th International Workshop on Artificial Neural Networks and Intelligent Information Processing (ICINCO 2009) - Workshop ANNIIP
TI - A Blind Source Separation Algorithm for the Processing and Classification of Electro-oculogram Data
SN - 978-989-674-002-3
AU - Rojas, F.
AU - García, R.
AU - Valenzuela, O.
AU - Velázquez, L.
AU - San Román, B.
PY - 2009
SP - 50
EP - 56
DO - 10.5220/0002263200500056
PB - SciTePress

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