ALS patient uses brain implant for 3,800 hours independently
First long-term "power user" of a speech implant: Casey Harrell, paralyzed by ALS, has logged over 3,800 hours using a brain-computer interface at home — far beyond what any previous user has achieved — communicating with 99% accuracy across a 125,000-word vocabulary. Growing independence changes everything: Early on, researchers had to physically connect Harrell to the device themselves. Now his care partner handles it, meaning he wakes up, gets plugged in, and simply gets o
Casey Harrell, who has ALS, has used a brain-computer interface for over 3,800 hours at home, achieving high accuracy in communication. Initially, researchers had to connect him to the device, but now he can manage it with a care partner's help. Harrell uses the implant for web browsing, email, and work as an environmental activist. A profanity filter allows him to read stories to his daughter. Experts view this as a major milestone but note challenges like brain degeneration and patient reluctance. Harrell's long-term use marks a significant step in BCI technology. His independence highlights the potential for future advancements in assistive technologies. The study was published in Nature Medicine.
This development shows progress in brain-computer interfaces, offering new possibilities for people with severe disabilities.
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