Towards decoding of functional movements from the same limb using EEG

Farid Shiman; Nerea Irastorza-Landa; Andrea Sarasola-Sanz; Martin Spuler; Niels Birbaumer; Ander Ramos-Murguialday

doi:10.1109/EMBC.2015.7318759

Towards decoding of functional movements from the same limb using EEG

Farid Shiman, Nerea Irastorza-Landa, Andrea Sarasola-Sanz, Martin Spuler, Niels Birbaumer, Ander Ramos-Murguialday

Istituto di Neuroriabilitazione Motoria San Camillo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In recent years, there has been an increasing interest in using electroencephalographic (EEG) activity to close the loop between brain oscillations and movement to induce functional motor rehabilitation. Rehabilitation robots or exoskeletons have been controlled using EEG activity. However, all studies have used a 2-class or one-dimensional decoding scheme. In this study we investigated EEG decoding of 5 functional movements of the same limb towards an online scenario. Six healthy participants performed a three-dimensional center-out reaching task based on direction movements (four directions and rest) wearing a 32-channel EEG cap. A BCI design based on multiclass extensions of Spectrally Weighted Common Spatial Patterns (Spec-CSP) and a linear discriminant analysis (LDA) classifier was developed and tested offline. The decoding accuracy was 5-fold cross-validated. A decoding accuracy of 39.5% on average for all the six subjects was obtained (chance level being 20%). The results of the current study demonstrate multiple functional movements decoding (significantly higher than chance level) from the same limb using EEG data. This study represents first steps towards a same limb multi degree of freedom (DOF) online EEG based BCI for motor restoration.

Original language	English
Title of host publication	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1922-1925
Number of pages	4
Volume	2015-November
ISBN (Print)	9781424492718
DOIs	https://doi.org/10.1109/EMBC.2015.7318759
Publication status	Published - Nov 4 2015
Event	37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015 - Milan, Italy Duration: Aug 25 2015 → Aug 29 2015

Other

Other	37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015
Country	Italy
City	Milan
Period	8/25/15 → 8/29/15

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Signal Processing
Biomedical Engineering
Health Informatics

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Shiman, F., Irastorza-Landa, N., Sarasola-Sanz, A., Spuler, M., Birbaumer, N., & Ramos-Murguialday, A. (2015). Towards decoding of functional movements from the same limb using EEG. In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS (Vol. 2015-November, pp. 1922-1925). [7318759] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2015.7318759

Towards decoding of functional movements from the same limb using EEG. / Shiman, Farid; Irastorza-Landa, Nerea; Sarasola-Sanz, Andrea; Spuler, Martin; Birbaumer, Niels; Ramos-Murguialday, Ander.

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. Vol. 2015-November Institute of Electrical and Electronics Engineers Inc., 2015. p. 1922-1925 7318759.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shiman, F, Irastorza-Landa, N, Sarasola-Sanz, A, Spuler, M, Birbaumer, N & Ramos-Murguialday, A 2015, Towards decoding of functional movements from the same limb using EEG. in Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. vol. 2015-November, 7318759, Institute of Electrical and Electronics Engineers Inc., pp. 1922-1925, 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015, Milan, Italy, 8/25/15. https://doi.org/10.1109/EMBC.2015.7318759

Shiman F, Irastorza-Landa N, Sarasola-Sanz A, Spuler M, Birbaumer N, Ramos-Murguialday A. Towards decoding of functional movements from the same limb using EEG. In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. Vol. 2015-November. Institute of Electrical and Electronics Engineers Inc. 2015. p. 1922-1925. 7318759 https://doi.org/10.1109/EMBC.2015.7318759

Shiman, Farid ; Irastorza-Landa, Nerea ; Sarasola-Sanz, Andrea ; Spuler, Martin ; Birbaumer, Niels ; Ramos-Murguialday, Ander. / Towards decoding of functional movements from the same limb using EEG. Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. Vol. 2015-November Institute of Electrical and Electronics Engineers Inc., 2015. pp. 1922-1925

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