Chris Ashton

dai11y 25/11/2019

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Letters of the alphabet next to their representations in the neural network

AI allows paralyzed person to ‘handwrite’ with his mind

  • People who are ‘locked in’ with severe paralysis, unable to communicate physically, are slowly being able to communicate via technology. “Electrodes implanted in a part of the brain involved in motion” have enabled some paralysed patients to move a cursor and select onscreen letters using just their thoughts, at a rate of 39 characters per minute. Researchers in Chicago have since taken this further; a volunteer imagined moving their arm to hand write each letter of the alphabet. Their brain activity helped to train a neural network to interpret the commands with 95% accuracy, allowing them to write at a faster 66 characters per minute. This speed is expected to improve and is not far off the speed of natural handwriting.

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