Current status and future prospects of brain-computer interfaces in the field of neurological disease rehabilitation.
Yu Luo, Xiaohu Liu, Miaomiao Yang
PMID 41743427WHAT IT FOUND
Brain-computer interfaces show promise for stroke and ALS rehabilitation, improving motor function and communication.
However, evidence is limited by small studies and short follow-up periods, so these tools should be viewed as experimental adjuncts rather than established treatments.
Key findings
01In stroke rehabilitation, motor-imagery BCI combined with functional electrical stimulation or robotics has shown greater improvements in upper-limb function and gait speed compared to conventional therapy in some trials.
02For ALS, invasive and non-invasive BCIs can restore communication, with some systems allowing independent home use for years, though performance often fails in the complete locked-in state.
03In multiple sclerosis, BCI-FES programs have improved gait speed and quality of life in small cohorts, but long-term efficacy and broader quality-of-life impacts remain uncertain.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The review is a narrative synthesis, not a systematic review or meta-analysis, so it does not pool effect sizes or assess bias formally. Most cited studies have small sample sizes (e.g., n=9 in MS, single cases in SCI/ALS), limiting generalizability. Long-term efficacy and durability of BCI interventions are largely unknown, with few studies following patients beyond a few weeks or months. Protocols vary widely in intensity, duration, and feedback modality, making it difficult to compare results or define optimal treatment parameters. Signal quality and user performance can be affected by patient fatigue, cognitive state, and lesion characteristics, leading to inconsistent outcomes. The review includes studies where BCI was combined with other interventions (FES, robotics, VR), so the specific contribution of the BCI component alone cannot always be isolated.
Declared interests
The authors declared financial support for this work and/or its publication, supported by grants KCTD11.
The easy way to misread this
Do not interpret the positive results in small trials as evidence that BCI is a standalone cure or a replacement for conventional therapy. The review emphasizes that BCIs are adjuncts, and their benefits are often tied to concurrent FES, robotics, or VR, making it unclear how much of the improvement is due to the BCI itself versus the other components.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →