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August 8, 2022
Science and Medical

Brain Implant Can Say What You’re Thinking

A brain-computer interface that records signals in the motor cortex can synthesize speech from activity in a user’s brain

Two years ago, a 64-year-old man paralyzed by a spinal cord injury set a record when he used a brain-computer interface (BCI) to type at a speed of eight words per minute.

Today, in the journal Nature, scientists at the University of California, San Francisco, present a new type of BCI, powered by neural networks, that might enable individuals with paralysis or stroke to communicate at the speed of natural speech—an average of 150 words per minute.

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