New technology enables paralysis patients to write


 

In light of the progress in science, American researchers have developed a new system known as (PCI), in which a small chip is used that is implanted in the brain of an infected person and is able to convert ideas into text on a computer screen.


The innovative system also uses a computer to decode handwriting movements from signals in the brain, via a chip made of arrays of small square electrodes the size of an aspirin.


Clinical experiment


The researchers conducted a clinical trial on a paralyzed man, where he was able to write text on a computer screen just by thinking about the hand movements that we do when writing, and he was able to copy sentences and answer questions at a rate similar to the average person when typing with a smartphone.


This new system also uses both the rich neural activity recorded by electrodes within the cortex and the power of language models that can be applied to letters, which have been numerically decoded, resulting in fast and accurate text writing.


In future plans


The researchers expect that it will be possible to use the handwriting attempt to enter the text as part of a more comprehensive system, which also includes point-and-click navigation, just like the one used in current smartphones, and even speech decoding.


They intend to work with a participant who has ALS, a neurological disorder that causes loss of both movement and speech.

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