Using a brain-machine interface to control a hybrid upper limb exoskeleton during rehabilitation of patients with neurological conditions
| Autor: | F. Resquín, José M. Azorín, Daniel Planelles, Enrique Hortal, Jose L Pons, José M. Climent |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Generalitat Valenciana |
| Rok vydání: | 2015 |
| Předmět: |
Male
medicine.medical_specialty Neurology medicine.medical_treatment Movement Health Informatics Neurological condition Electroencephalography Upper Extremity BMI Physical medicine and rehabilitation Motor imagery Functional electrical stimulation medicine Humans Exoskeleton Device EEG Brain–computer interface Rehabilitation medicine.diagnostic_test business.industry Research Middle Aged Exoskeleton Arm movement intention detection Brain-Computer Interfaces Physical therapy Female Nervous System Diseases business human activities |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Journal of NeuroEngineering and Rehabilitation |
| Popis: | [Background] As a consequence of the increase of cerebro-vascular accidents, the number of people suffering from motor disabilities is raising. Exoskeletons, Functional Electrical Stimulation (FES) devices and Brain-Machine Interfaces (BMIs) could be combined for rehabilitation purposes in order to improve therapy outcomes. [Methods] In this work, a system based on a hybrid upper limb exoskeleton is used for neurological rehabilitation. Reaching movements are supported by the passive exoskeleton ArmeoSpring and FES. The movement execution is triggered by an EEG-based BMI. The BMI uses two different methods to interact with the exoskeleton from the user’s brain activity. The first method relies on motor imagery tasks classification, whilst the second one is based on movement intention detection. [Results] Three healthy users and five patients with neurological conditions participated in the experiments to verify the usability of the system. Using the BMI based on motor imagery, healthy volunteers obtained an average accuracy of 82.9 ± 14.5 %, and patients obtained an accuracy of 65.3 ± 9.0 %, with a low False Positives rate (FP) (19.2 ± 10.4 % and 15.0 ± 8.4 %, respectively). On the other hand, by using the BMI based on detecting the arm movement intention, the average accuracy was 76.7 ± 13.2 % for healthy users and 71.6 ± 15.8 % for patients, with 28.7 ± 19.9 % and 21.2 ± 13.3 % of FP rate (healthy users and patients, respectively). [Conclusions] The accuracy of the results shows that the combined use of a hybrid upper limb exoskeleton and a BMI could be used for rehabilitation therapies. The advantage of this system is that the user is an active part of the rehabilitation procedure. The next step will be to verify what are the clinical benefits for the patients using this new rehabilitation procedure. This research has been funded by the Spanish Ministry of Economy and Competitiveness as part of the Brain2motion project - Development of a Multimodal Brain-Neural Interface to Control an Exoskeletal: Neuroprosthesis Hybrid Robotic System for the Upper Limb (DPI2011-27022-C02-01) and by Conselleria d’Educació, Cultura i Esport of Generalitat Valenciana of Spain through grant FPA/2014/041. |
| Databáze: | OpenAIRE |
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