Symmetry

Motor attempt, meaning a patient's effort to move a paralyzed limb, was the intent-inducing modality most consistently tied to significant therapeutic effects in an umbrella review of 17 meta-analyses of brain-computer interface systems for stroke motor recovery, published in Symmetry on September 4, 2026 with a literature search cutoff of June 30, 2026. Electrical stimulation was a consistently effective feedback type, while robot-assisted and visual feedback gave inconsistent results, and higher weekly session frequency and moderate session durations of about 20 to 60 minutes were linked to consistent recovery. Combining motor attempt with electrical stimulation may yield greater benefits, the authors suggest.