Paired Associative Stimulation using Brain-Computer Interfaces for Stroke Rehabilitation: A Pilot study

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Woosang Cho *
Nikolaus Sabathiel
Rupert Ortner
Alexander Lechner
Danut C. Irimia
Brendan Z. Allison
Guenter Edlinger
Christoph Guger
(*) Corresponding Author:
Woosang Cho | cho@gtec.at

Abstract

Conventional therapies do not provide paralyzed patients with closed-loop sensorimotor integration for motor rehabilitation. Paired associative stimulation (PAS) uses brain-computer interface (BCI) technology to monitor patients’ movement imagery in real-time, and utilizes the information to control functional electrical stimulation (FES) and bar feedback for complete sensorimotor closed loop. To realize this approach, we introduce the recoveriX system, a hardware and software platform for PAS. After 10 sessions of recoveriX training, one stroke patient partially regained control of dorsiflexion in her paretic wrist. A controlled group study is planned with a new version of the recoveriX system, which will use a new FES system and an avatar instead of bar feedback.

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