Researchers have identified how individual brain cells work together to produce human speech by combining single-cell brain recordings with artificial intelligence. Using data from epilepsy patients with implanted microelectrode arrays, scientists discovered that specific neurons process different aspects of language—from the meaning of words to sentence structure and context. Remarkably, brain activity recorded just before speaking accurately predicted the words participants were about to say. These findings provide the most detailed view yet of how the brain encodes language and could pave the way for advanced brain-computer interfaces that convert neural activity into speech, offering new hope for people with paralysis or communication disorders.
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