Video games aid paralyzed speech

Researchers at Speech Graphics, UC San Francisco and UC Berkeley report a brain–computer interface that helped a woman who lost speech after a stroke communicate again. Tiny electrodes were placed on the surface of her brain to record neural activity while she attempted to speak. That recorded activity was decoded into written text, a synthetic voice and real-time facial animation using software originally developed for video-game characters such as those in The Last of Us Part II and Hogwarts Legacy.

This demonstration is a proof-of-concept showing how gaming-grade facial animation and neural decoding can restore a form of communication for someone who cannot speak. The study involved one participant in a controlled research setting; researchers stress more work is needed to improve accuracy, reduce invasiveness and test long-term use. If refined and validated, the method could let people with paralysis or neurodegenerative disease convey words and expressions through avatars and synthetic voices.

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