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An Embedded Hybrid BCI Speller

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VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016

Part of the book series: IFMBE Proceedings ((IFMBE,volume 60))

Abstract

The present work proposes an embedded real time hardware-software platform for brain computer interfaces (BCI) based on steady state visual evoked potentials (SSVEP) and alpha rhythm. The complete implementation of the embedded system is described, including the electroencephalogram (EEG) amplifier, signal acquisition and processing stages, and practical implementation. The device is a 25 characters hybrid-BCI speller that uses 5 visual stimulus and visual alpha waves for control instructions. The system focuses on simplicity and portability, using only two electrodes, a simple EEG amplifier and an embedded computer. The speller does not require any training from the user and provides real time biofeedback to increase attention on stimuli. The platform is based on an embedded system with a real time operative system, Windows CE. Experimental results are presented in order to show the feasibility of the proposed system.

Working as a speller, the current average speed is around 7 characters per minute.

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Author information

Authors and Affiliations

  1. Facultad de Ingeniería/Electrotecnia/LEICI, Universidad Nacional de La Plata, La Plata, Argentina

    P. A. García, E. M. Spinelli & G. M. Toccaceli

  2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina

    E. M. Spinelli & G. M. Toccaceli

Authors
  1. P. A. García
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  2. E. M. Spinelli
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  3. G. M. Toccaceli
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Editor information

Editors and Affiliations

  1. Asociación Colombiana de Bioingeniería y Electrónica Médica - ABIOIN, Bucamaranga, Colombia

    Isnardo Torres

  2. Universidad Pontificia Bolivariana - UPB, Centro de Bioingeniería, Medellín, Colombia

    John Bustamante

  3. Universidad Industrial de Santander, Escuela de Ing. Eléctrica, Electrónica, Bucaramanga, Colombia

    Daniel A. Sierra

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García, P.A., Spinelli, E.M., Toccaceli, G.M. (2017). An Embedded Hybrid BCI Speller. In: Torres, I., Bustamante, J., Sierra, D. (eds) VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016. IFMBE Proceedings, vol 60. Springer, Singapore. https://doi.org/10.1007/978-981-10-4086-3_7

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  • DOI: https://doi.org/10.1007/978-981-10-4086-3_7

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-4085-6

  • Online ISBN: 978-981-10-4086-3

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