An associative Brain-Computer-Interface for acute stroke patients

Natalie Mrachacz-Kersting, Andrew James Thomas Stevenson, Susan Aliakbaryhosseinabadi, Anna Charlotte Lundgaard, Helle Rovsing Jørgensen, Kåre Eg Severinsen, Dario Farina

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

7 Citations (Scopus)


An efficient innovative Brain-Computer-Interface system that empowers chronic stroke patients to control an artificial activation of their lower limb muscle through task specific motor intent has been tested in the past. In the current study it was applied to acute stroke patients. The system consists in detecting the movement-related cortical potential (MRCP) using scalp electrodes as the patient attempts to perform a dorsiflexion task. This is translated into the control command for an electrical stimulator to generate a stimulus to the nerve that innervates and thus activates the prime mover (tibialis anterior). This activation is precisely and individually timed such that the sensory signal arising from the stimulation reaches the motor cortex during its maximum activation due to the intention. The output of the motor cortical area representing the dorsiflexor muscles was significantly enhanced in all patients tested following a single session of 30 repetitions. All patients were able to perform the intervention with minimal training and very few repetitions, making this a feasible new efficient approach for restoration of motor function in stroke patients. Such few necessary applications of the protocol make it a unique approach in comparison to available techniques and paves the way for at home use devices.
Original languageEnglish
Title of host publicationConverging Clinical and Engineering Research on Neurorehabilitation II : Proceedings of the 3rd International Conference on NeuroRehabilitation (ICNR2016), October 18-21, 2016, Segovia, Spain
EditorsJaime Ibáñez, José González-Vargas, José María Azorín, Metin Akay, José Luis Pons
Publication date2017
ISBN (Print)978-3-319-46668-2
ISBN (Electronic)978-3-319-46669-9
Publication statusPublished - 2017
EventInternational Conference on NeuroRehabilitation, ICNR - Segovia, Spain
Duration: 18 Oct 201621 Oct 2016
Conference number: 3


ConferenceInternational Conference on NeuroRehabilitation, ICNR
SeriesBiosystems and Biorobotics


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