A computer that reads speech from the brain of a paralyzed person sets a new record

(ORDO NEWS) — Researchers from Stanford University managed to set another record for the operation of the brain-computer speech interface.

The system, which records peak activity from arrays of intracortical microelectrodes, allowed a study participant (who lost the ability to speak due to amyotrophic lateral sclerosis) to use a 50-word dictionary at an error rate of 9.1% (which is 2.7 times less error than during previous testing of the technique) and a dictionary of 125,000 words, but already with an error rate of 23.8%.

The brain-computer interface was able to decode speech at 62 words per minute, 3.4 times faster than the previous record and starting to approach the speed of natural conversation (160 words per minute).


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