Brain-computer interfaces: A new voice for people with paralysis
· Medical Xpressedited by Sadie Harley, reviewed by Andrew Zinin
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Recent advancements in brain-computer interfaces are helping restore communication in clinical trial participants who have lost the ability to speak or make voluntary movements. New findings were presented at Neuroscience 2026, the annual meeting of the Society for Neuroscience.
Brain-computer interfaces (BCIs) record a person's brain signals and translate them into commands to control computers, prosthetic limbs or other devices. The technology is still largely experimental but shows promise for restoring functions lost due to amyotrophic lateral sclerosis (ALS, or Lou Gehrig's disease), stroke and other neurological disorders.
Reflecting this potential, the global BCI market is projected to increase from $1.7 billion in 2022 to $6.2 billion by 2030. Clinical trials of BCIs that help people with paralysis communicate are moving these devices closer to real-world applications and deepening researchers' understanding of how the brain produces speech.
New findings show that:
- A BCI used a synthetic voice capable of capturing pitch variations to facilitate expressive communication for paralyzed patients, improving listener comprehension and even allowing a patient to sing (Maitreyee Wairagkar, University of California, Davis)
- An individual in a completely locked-in state was able to communicate independently for more than a year with a BCI that decodes intended movement from brain activity (Daniel Rubin, Massachusetts General Hospital)
- A portable brain-to-text BCI offers accurate, efficient, and reliable decoding of brain activity into written words, even on an iPhone (Chethan Pandarinath, Georgia Institute of Technology/Emory University)
"The ability to decode and convert brain activity into spoken or written words has life-changing potential for people with paralysis," says event moderator Cynthia Chestek, a biomedical engineer at the University of Michigan who works on implantable BCIs for neural control of prosthetic limbs and other assistive technology.
"The work presented today brings brain-to-voice and brain-to-text technologies closer to reaching people outside of clinical trials, which is extremely exciting."
Key medical concepts
Brain-Computer InterfacesParalysis
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Neurology Provided by Society for Neuroscience Who's behind this story?
Sadie Harley
BSc Life Sciences & Ecology. Microbiology lab background with pharmaceutical news experience in oil, gas, and renewable industries. Full profile →
Andrew Zinin
Master's in physics with research experience. Long-time science news enthusiast. Plays key role in Science X's editorial success. Full profile →
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