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2014 | OriginalPaper | Buchkapitel

Classification of EEG-Based Brain–Computer Interfaces

verfasst von : Ahmad Taher Azar, Valentina E. Balas, Teodora Olariu

Erschienen in: Advanced Intelligent Computational Technologies and Decision Support Systems

Verlag: Springer International Publishing

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Abstract

This chapter demonstrates the development of a brain computer interface (BCI) decision support system for controlling the movement of a wheelchair for neurologically disabled patients using their Electroencephalography (EEG). The subject was able to imagine his/her hand movements during EEG experiment which made EEG oscillations in the signal that could be classified by BCI. The BCI will translate the patient’s thoughts into simple wheelchair commands such as “go” and “stop”. EEG signals are recorded using 59 scalp electrodes. The acquired signals are artifacts contaminated. These artifacts were removed using blind source separation (BSS) by independent component analysis (ICA) to get artifact-free EEG signal from which certain features are extracted by applying discrete wavelet transformation (DWT). The extracted features were reduced in dimensionality using principal component analysis (PCA). The reduced features were fed to neural networks classifier yielding classification accuracy greater than 95 %.

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Titel: Classification of EEG-Based Brain–Computer Interfaces
verfasst von: Ahmad Taher Azar
Valentina E. Balas
Teodora Olariu
Verlag: Springer International Publishing
Buch: Advanced Intelligent Computational Technologies and Decision Support Systems
Print ISBN: 978-3-319-00466-2

Electronic ISBN: 978-3-319-00467-9

Copyright-Jahr: 2014
DOI: https://doi.org/10.1007/978-3-319-00467-9_9

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