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A mind–reading brain implant that comes with password protection
A brain–computer interface decodes in near-real time the imagined speech of people who have difficulty enunciating words.
The study, published in Cell on 14 August, represents a “technically impressive and meaningful step” towards developing BCI devices that accurately decode internal speech, says Sarah Wandelt, a neural engineer at the Feinstein Institutes for Medical Research in Manhasset, New York, who was not involved in the work. BCI systems translate brain signals into text or audio and have become promising tools for restoring speech in people with paralysis or limited muscle control. But there’s a risk that these internal-speech BCIs could accidentally decode sentences users never intended to utter, says Erin Kunz, a neural engineer at Stanford University in California.
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