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The Synchron Switch is inserted through blood vessels and works its way to the vein next to your brain's motor cortex; the stent is outfitted with tiny sensors that collect 'raw brain data,' which connect to an antenna implanted under the skin of the chest. https://www.pcgamer.com/this-implant-lets-those-with-severe-paralysis-send-texts-and-use-the-internet-with-just-their-minds