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UC Davis brain implant lets ALS patient speak with 99% accuracy and work full time, no researchers needed

A UC Davis BCI implant let an ALS patient speak independently for 3,800+ hours over two years with 99% accuracy, enabling him to work full time.

UC Davis brain implant lets ALS patient speak with 99% accuracy and work full time, no researchers needed

TL;DR

  • A man with ALS has used a brain implant for over 3,800 hours in two years to speak independently.
  • The system translates neural activity from 256 cortical electrodes into phonemes, words, and sentences.
  • It achieved over 99% word accuracy in controlled testing and 92% accuracy in daily use.
  • The implant allows the participant to work full-time and communicate with his family.
  • This is the longest sustained demonstration of a brain-computer interface as a practical daily communication tool outside a laboratory.
  • The technology relies on machine learning algorithms developed by UC Davis researchers.
  • Future advancements in hardware miniaturization aim to make such setups less cumbersome.

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