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Effect of Attention Variation in Stroke Patients: Analysis of Single Trial Movement-Related Cortical Potentials

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Converging Clinical and Engineering Research on Neurorehabilitation II

Part of the book series: Biosystems & Biorobotics ((BIOSYSROB,volume 15))

Abstract

We have previously developed a Brain-computer interface (BCI) for neuromodulation based on movement related cortical potentials (MRCP). Since successful induction of plasticity is dependent on the attention of the user, the aim of this study was to analyze the changes in MRCPs during imposed attentional shifts in patients. We recorded EEG signals from Cz and its surrounding channels in seven chronic stroke patients, who were asked to attempt ankle dorsiflexion in two subsets of 30 repetitions. Each subset was separated from the other by an auditory oddball task comprised of three tones. Patients were asked to detect the target tone by pressing a button. Nine temporal features were extracted from single trial MRCPs and compared between the two subsets of dorsiflexion that were interspersed by the oddball task. The amplitude of the MRCP negativity, pre-movement slopes, pre-movement variability and movement detection latency and accuracy changed significantly when attention was diverted from the main task of dorsiflexion. This has significant implications for BCIs designed to induce plasticity since detection failure will result in inappropriate device control.

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Acknowledgments

Research was supported by the Obel foundation.

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Authors and Affiliations

  1. Center for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University, 9220, Aalborg, Denmark

    S. Aliakbaryhosseinabadi & N. Mrachacz-Kersting

  2. Neurology Clinic, Clinical Center of Serbia, Faculty of Medicin, University of Belgrade, Belgrade, Serbia

    V. Kostic, A. Pavlovic & S. Radovanovic

  3. Department of Neurorehabilitation Engineering, Bernstein Focus Neurotechnology Gottingen, Bernstein Center for Computational Neuroscience, University Medical Center Gottingen, August University, Gottingen, Germany

    D. Farina

Authors
  1. S. Aliakbaryhosseinabadi
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  2. V. Kostic
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  3. A. Pavlovic
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  4. S. Radovanovic
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  5. D. Farina
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  6. N. Mrachacz-Kersting
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Corresponding author

Correspondence to S. Aliakbaryhosseinabadi .

Editor information

Editors and Affiliations

  1. Cajal Institute, Spanish National Research Council Cajal Institute, Madrid, Spain

    Jaime Ibáñez

  2. Cajal Institute, Spanish National Research Council Cajal Institute, Madrid, Spain

    José González-Vargas

  3. Avda. de la Universidad s/n, Universidad Miguel Hernández de Elche Avda. de la Universidad s/n, Elche, Spain

    José María Azorín

  4. Cullen College of Engineering, University of Houston Cullen College of Engineering, Houston, USA

    Metin Akay

  5. Cajal Institute, Spanish National Research Council Cajal Institute, Madrid, Spain

    José Luis Pons

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Aliakbaryhosseinabadi, S., Kostic, V., Pavlovic, A., Radovanovic, S., Farina, D., Mrachacz-Kersting, N. (2017). Effect of Attention Variation in Stroke Patients: Analysis of Single Trial Movement-Related Cortical Potentials. In: Ibáñez, J., González-Vargas, J., Azorín, J., Akay, M., Pons, J. (eds) Converging Clinical and Engineering Research on Neurorehabilitation II. Biosystems & Biorobotics, vol 15. Springer, Cham. https://doi.org/10.1007/978-3-319-46669-9_159

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  • DOI: https://doi.org/10.1007/978-3-319-46669-9_159

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-46668-2

  • Online ISBN: 978-3-319-46669-9

  • eBook Packages: EngineeringEngineering (R0)

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