Towards a BCI for sensorimotor training: Initial results from simultaneous fNIRS and biosignal recordings

Zimmermann, R.; Marchal Crespo, Laura; Lambercy, O.; Fluet, Marie-Christine; Riener, Robert; Wolf, M.; Gassert, Roger (1 December 2011). Towards a BCI for sensorimotor training: Initial results from simultaneous fNIRS and biosignal recordings. IEEE Engineering in Medicine and Biology Society conference proceedings, 2011, pp. 6339-6343. IEEE Service Center 10.1109/IEMBS.2011.6091565

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This paper presents the concept and initial results of a novel approach for robot assisted sensorimotor training in stroke rehabilitation. It is based on a brain-body-robot interface (B2RI), combining both neural and physiological recordings, that detects the intention to perform a motor task. By directly including the injured brain into the therapy, we ultimately aim at providing a new method for severely impaired patients to engage in active movement therapy. In the present study, seven healthy subjects performed an isometric finger pinching task while functional near-infrared spectroscopy (fNIRS) signals from motor cortical areas and biosignals were recorded simultaneously. Results showed an insignificant increase in the blood pressure during the preparation period prior to motor execution. During the execution period, significant changes in oxy-and deoxyhemoglobin were found in the primary motor cortex, accompanied by an increase in blood pressure, respiration rate and galvanic skin response (GSR). Cortical measurements of premotor areas and heart rate revealed significant changes at the subject level with large inter-subject variability. The results presented here will serve as priors for the design of further studies to test the efficacy of the concept with stroke patients, and the found effects will provide a basis for the development of a classifier for a future B2RI.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation

UniBE Contributor:

Marchal Crespo, Laura; Riener, Robert and Gassert, Roger

Subjects:

600 Technology > 610 Medicine & health
600 Technology > 620 Engineering

ISSN:

1557-170X

ISBN:

978-1-4244-4121-1

Publisher:

IEEE Service Center

Language:

English

Submitter:

Angela Amira Botros

Date Deposited:

19 Jun 2018 14:15

Last Modified:

19 Jun 2018 14:15

Publisher DOI:

10.1109/IEMBS.2011.6091565

PubMed ID:

22255788

BORIS DOI:

10.7892/boris.117139

URI:

https://boris.unibe.ch/id/eprint/117139

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