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Mind-reading devices are revealing the brain’s secrets
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Mind-reading devices are revealing the brain’s secrets

Implants and other technologies that decode neural activity can restore people’s abilities to move and speak — and help researchers to understand how the brain works. By Miryam Naddaf Scientists have studied how brain–computer interfaces, such as this non-invasive cap, change brain activity. Credit: Silvia Marchesotti Moving a prosthetic arm. Controlling a speaking avatar. Typing...