Mind-reading AI can turn neural activity into sentences with a 97 per cent accuracy rate.
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| Now the immobile can get in on texting. |
Scientists have developed an AI (artificial intelligence) system that translates a person’s private thoughts into public texts by analyzing brain activity.
Researchers at the University of California at San Francisco developed the AI to decipher up to 250 words in real time from a set of between 30 and 50 sentences.
The algorithm was trained using the neural signals of four women with electrodes implanted in their brains, which were already in place to monitor epileptic seizures.
The volunteers repeatedly read sentences aloud while the researchers fed the brain data to the AI to unpick patterns that could be associated with individual words.
The average word error rate across a repeated set was as low as 3%.
“A decade after speech was first decoded from human brain signals, accuracy and speed remain far below that of natural speech,” states a paper detailing the research, published in the journal Nature Neuroscience. More
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