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Tiny implant ‘speaks’ to the brain with LED light

Tiny implant ‘speaks’ to the brain with LED light

A small device (left) is designed to be implanted under the skin of the scalp and deliver LED light into the brain tissue beneath. (Image credit: Mingzheng Wu/Rogers Research Group) A new brain-machine interface (BMI) uses light to “speak” to the brain, mouse experiments show. The minimally invasive wireless device, which is placed under the...