Scientists in California have built a device that can translate brain signals into speech. - NBCNewsMACH
, scientists in California have built a device that can translate brain signals into speech. They say their experimental decoder could lead ultimately to a brain implant that restores the ability to speak to people who have lost it as a result of stroke, traumatic brain injury or neurological diseases like multiple sclerosis and Parkinson’s disease.
“This is an exhilarating proof of principle that with technology that is already within reach, we should be able to,” Edward Chang, a professor of neurological surgery at the University of California, San Francisco, and the senior author of a paper describing the technology, said in a statement. For their research, Chang and his collaborators recorded the brain activity of five epilepsy patients as they read aloud a list of sentences. Then a pair of neural networks — artificial intelligence algorithms specially designed for pattern recognition — began the decoding process. They first used the brain signals to predict the instructions being sent to the lips, tongue, jaw and throat to produce the words.
Other scientists lauded the research for its focus on mouth movements needed to produce speech rather than on specific words or sounds. The approach allowed them to tap into a rich vein of research on turning thought into movement, Ander Ramos-Murguialday, who leads aBrain-machine interfaces translate brain signals into actions, like moving a cursor on a screen or even
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