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| Artificial intelligence helps people with aphasia and paralysis re-open their mouths |
Xinhua News Agency, Beijing, July 17th.
"Reference News" published the report "Artificial Intelligence Helps the Aphasia and Paralyzed People Re-open" on the 17th of the US "Popular Science" website
.
The summary is as follows:
In 2003, a 20-year-old man suffered a severe stroke after a car accident
.
This made him paralyzed, leaving only his eyes to move, and very slight head movement
18 years later, scientists announced that with the help of implanted electrode sets and artificial intelligence, the man had recovered part of his speech ability
.
During the 3-hour operation, the scientists opened the man’s skull and implanted an electrode group with a total of 128 electrodes in his sensory motor cortex (here, the nerve area related to language processing)
.
Before closing the skull, the scientists connected electrodes to ports protruding from the patient's head and sent signals from these electrodes to the computer through detachable wires
According to the " New York Times " report, when this man named "Pancho" is thinking about words, the brain's communication center will be activated, and the electrodes will detect these signals
.
In 50 conversations lasting 81 weeks, Pancho retrieved a list of common words while connected to an artificial intelligence interface
New York Times
But the algorithm is not perfect yet, and there will be problems when encountering similar pronunciations.
A sentence like "How are you?" will become "Are you hungry?" Therefore, the team of researchers created a second type of artificial intelligence for Natural language modeling
.
This kind of artificial intelligence takes into account syntax, etc.
Pancho's language circuit was and is intact
.
Currently he can only speak at a speed of 15 to 18 words per minute (far lower than the normal conversation speed of 125 to 150 words per minute), but the research team is optimistic that they can improve the system to increase its speed and accuracy Degree, and finally achieve wireless
