Related Experiment Video
Updated: Mar 11, 2026
Author Spotlight: Enhancing Upper Limb Rehabilitation in Stroke Patients Through Advanced Robotic and Neuromodulation Technologies
Published on: October 11, 2024
EEG-Triggered Functional Electrical Stimulation Therapy for Restoring Upper Limb Function in Chronic Stroke with
Cesar Marquez-Chin1, Aaron Marquis2, Milos R Popovic3
1Rehabilitation Engineering Laboratory, The Lyndhurst Centre, Toronto Rehabilitation Institute-University Health Network, 520 Sutherland Drive, Toronto, ON, Canada M4G 3V9; Neural Engineering Laboratory, University Centre, Toronto Rehabilitation Institute-University Health Network, 550 University Avenue, Toronto, ON, Canada M5G 2A2.
Brain-computer interface (BCI) and functional electrical stimulation (FES) therapy improved upper limb function in a stroke survivor. This combined approach shows promise for restoring motor control in chronic hemiplegia.
Area of Science:
- Neuroscience
- Rehabilitation Medicine
- Biomedical Engineering
Background:
- Stroke survivors with chronic hemiplegia often experience severe upper limb deficits.
- Current rehabilitation interventions show limited efficacy for individuals with long-term motor impairments.
Purpose of the Study:
- To evaluate the therapeutic effects of integrating brain-computer interface (BCI) technology with functional electrical stimulation (FES) therapy.
- To restore upper limb reaching movements in a patient with chronic severe hemiplegia.
Main Methods:
- A 64-year-old male participant with severe left hemiplegia underwent 40 sessions of FES therapy using a custom neuroprosthesis.
- BCI technology utilized electroencephalography (EEG) signals (beta frequency range) to trigger FES for facilitating reaching movements.
- Stimulation was activated when EEG beta power decreased below a set threshold during attempted arm movements.
Main Results:
- The participant demonstrated clinically significant improvement in the Fugl-Meyer Assessment Upper Extremity (FMA-UE) score (6 points).
- Moderate improvement was observed in the Functional Independence Measure Self-Care subscore (7 points).
- Restored upper limb function was achieved through the combined BCI and FES intervention.
Conclusions:
- The integration of BCI technology and FES therapy offers a potential therapeutic strategy for individuals with chronic hemiplegia and severe upper limb deficits.
- This combined approach may restore voluntary motor function in a patient population unresponsive to conventional rehabilitation.
- BCI-FES therapy presents a novel avenue for neurorehabilitation in stroke recovery.
