This man with ALS is “the first power user” of a brain implant that lets him speak

June 16, 2026 - 02:26

Casey Harrell, a man living with ALS, has become what researchers call the first power user of a groundbreaking brain implant that allows him to speak. The device, which reads neural signals and translates them into words, has given Harrell back a vital part of his life that the disease had taken away.

Harrell now uses the implant daily to talk with friends and family, read bedtime stories to his young daughter, and even perform his job. For someone with ALS, a progressive neurodegenerative disease that eventually paralyzes muscles used for speaking and breathing, this technology represents a dramatic shift. Instead of relying on eye-tracking devices or typing with slow muscle movements, Harrell can think about what he wants to say, and the system voices it for him.

Researchers at the University of California, Davis, developed the system. They implanted electrodes in Harrell's brain that detect signals from the motor cortex, the area responsible for planning speech. A computer then decodes those signals in real time and produces audible speech. The team reports that Harrell can communicate at a speed close to natural conversation, a major leap from earlier brain-computer interfaces that were much slower and less accurate.

For Harrell, the implant has been life-changing. He can now participate in meetings at work, joke with friends, and connect with his daughter in a way that was impossible before. The technology is still experimental, but Harrell's case shows that brain implants can move beyond simple cursor control and into the realm of full communication. His experience offers hope to thousands of people with ALS and other conditions that rob them of speech.