At a glance
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The PROMOTOER: a BCI -Based Intervention That Promotes Upper Limb Functional Motor Recovery. A Randomized Clinical Trial to Test Long-term Efficacy and to Identify Determinants of Response to Intervention in Subacute Stroke Patients
In Brief
A clinical study evaluating EEG-based BCI system for (hand) Motor Imagery training and Motor Imagery training for Stroke and Motor Disorders. Completed, enrolled 49 participants across 1 site.
Detailed Summary
Stroke is a leading cause of long-term disability. Cost-effective post-stroke rehabilitation programs are critically needed. Brain-Computer Interface (BCI) systems which enable the modulation of EEG sensorimotor rhythms are promising tools to promote early improvements of motor rehabilitation outcomes after stroke. This project intends to boost this BCI application beyond the state of art by providing: i) evidence for a short/long-term efficacy in enhancing post-stroke functional hand motor recovery; and ii) quantifiable indices (beyond clinical scales) sensitive to stroke participant's response to a Promotoer (BCI system compatible with clinical setting) -based intervention. To these aims, a longitudinal randomized controlled trial will be performed in which, subacute stroke participants will undergo a Promotoer- assisted hand motor imagery training.
Study Details
Timeline
Interventions
The Promotoer is an all-in-one BCI-supported motor imagery (MI) training station, equipped with a computer, a commercial wireless Electroencephalography (EEG)/ Electromyography (EMG) system, a screen for therapist feedback (EEG and EMG activity monitoring) and screen for the real-time ecological feedback to patient - a custom software program that provides a for (personalized) visual representation of the patient's own hands. As such, this software allows the therapists to create an artificial reproduction of a given patient's hand/forearm by adjusting a digitally created image in shape, size, skin colour and orientation to match as much as possible the real patient hand/forearm. Training consists of the MI tasks only of the affected hand, grasping or finger extension in separate runs. The trial length will include a constant baseline period of 4 sec and a task period of maximally 10 sec for BCI intervention group. Each training session will consist of 4 runs (20 trials each).
Training consists of MI tasks only of the affected hand, grasping or finger extension in separate runs. MI training will be delivered without BCI support (ie., the Promotoer system will not provide real-time feedback of MI performance; hand/forearm visual representation will remain standstill) with a dose/setting regimen equivalent to EXP intervention. The trial length will include a constant baseline period of 4 sec and a task period of maximally 4 sec. Each training session will consist of 4 runs (20 trials each).