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PolyMorph: A P300 Polymorphic Speller

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Brain and Health Informatics (BHI 2013)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 8211))

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Abstract

P300 is an electric signal emitted by brain about 300 milliseconds after a rare, but relevant-for-the-user event. Even if it is hard to identify and it provides a low-rate communication channel, it can be used in cases in which other evoked potentials fail. One of the applications of this signal is a speller that enables subjects who lost the control of their motor pathways to communicate by selecting one by one each character of a sentence in a matrix containing all the alphabet symbols. This paper provides an improvement of this paradigm and it aims at reducing both the error rate and the time required to spell a sentence by exploiting the redundancy which is present in all the natural languages.

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Author information

Authors and Affiliations

  1. Dept. of Mathematics and Geosciences, University of Trieste, Italy

    Alberto Casagrande & Francesco Fabris

  2. Dept. of Life Sciences, University of Trieste, Italy

    Joanna Jarmolowska, Marcello Turconi & Piero Paolo Battaglini

Authors
  1. Alberto Casagrande
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  2. Joanna Jarmolowska
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  3. Marcello Turconi
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  4. Francesco Fabris
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  5. Piero Paolo Battaglini
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Editor information

Editors and Affiliations

  1. Department of Systems Life Engineering, Maebashi Institute of Technology, 460-1 Kamisadori-cho, 371-0816, Maebashi, Gunma, Japan

    Kazayuki Imamura

  2. Electronics-Inspired Interdisciplinary Research Institute, Toyohashi University of Technology, 1-1 Hibarigaoka Tenpaku-cho, 441-8580, Toyohashi, Aichi, Japan

    Shiro Usui

  3. Department of Neurobiology and Behavior, Gunma University Graduate School of Medicine, 39-22 Showamachi 3-chome, 371-8511, Maebashi, Gunma, Japan

    Tomoaki Shirao

  4. The Smith Kettlewell Eye Research Institute, 2318 Fillmore Street, 94115, San Francisco, CA, USA

    Takuji Kasamatsu

  5. University of Rostock, 18051, Rostock, Germany

    Lars Schwabe

  6. Department of Life Science and Informatics, Maebashi Institute of Technology, 460-1 Kamisadori-cho, 371-0816, Maebashi, Gunma, Japan

    Ning Zhong

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© 2013 Springer International Publishing Switzerland

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Casagrande, A., Jarmolowska, J., Turconi, M., Fabris, F., Battaglini, P.P. (2013). PolyMorph: A P300 Polymorphic Speller. In: Imamura, K., Usui, S., Shirao, T., Kasamatsu, T., Schwabe, L., Zhong, N. (eds) Brain and Health Informatics. BHI 2013. Lecture Notes in Computer Science(), vol 8211. Springer, Cham. https://doi.org/10.1007/978-3-319-02753-1_30

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  • DOI: https://doi.org/10.1007/978-3-319-02753-1_30

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-02752-4

  • Online ISBN: 978-3-319-02753-1

  • eBook Packages: Computer ScienceComputer Science (R0)

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