Chris Ashton

dai11y 06/06/2022

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Man Who Is Paralyzed Communicates By Imagining Handwriting

A man left quadriplegic after a freak accident has taken part in a study of a system called BrainGate2, developed at Stanford. The system relies on electrodes surgically implanted near the part of the brain that controls movement.

The man imagines writing individual characters by hand, and the computer learned to decode the distinct patterns with 95% accuracy. He can now type at a rate of 90 characters per minute.

I first covered this technology 2.5 years ago, in dai11y 25/11/2019. That system was developed at Chicago, and had a rate of around 66 characters per minute. So the technology is improving – which is fantastic. I just hope the surgically implanted hardware doesn’t go the way of the Second Sight implants and become unsupported.


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