2023-06-16 05:00:00
Yasmina Kattou / Crédit photo : MOHAMAD ALSAYED / ANADOLU AGENCY / ANADOLU AGENCY VIA AFP
modified to
07:46, June 16, 2023
Thanks to advances in artificial intelligence, quadriplegic people – equipped with electrodes on part of their brain – are seeing their hopes of moving once more become clearer. Scientific teams are preparing to launch a new clinical trial to restore the function of the hands and arms of test patients.
A few weeks ago, a paraplegic started to walk once more on his own two legs following spending twelve years in an armchair. A feat possible following several years of research thanks to artificial intelligence. The scientific teams are preparing to launch a new clinical trial to restore this time the function of the hands and arms in quadriplegic patients.
After implanting electrodes on the parts of the brain that control the movements of the arms and hands, electrical signals are generated each time the patient thinks of moving one of their limbs. Artificial intelligence then intervenes to decode each signal, and transform it into movement.
A brain-machine interface
“We have to create a specific model for each patient which in fact makes it possible to identify the unique characteristics of the electrical signal of the brain. The patient, if we ask him for example to move his arm, we will record the cerebral electrical activity corresponding to this movement he tried to make. And this trajectory is decoded in real time thanks to the model”, explains Guillaume Charvet, scientist responsible for this brain-machine interface.
The more the patient uses the brain-machine interface, the more he nurtures this artificial intelligence. He thus creates himself the data which allows the computer to interpret the thoughts to transform them into movement, and to be able to move once more.
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