Watch this video, and witness a breakthrough in the field of brain-machine interfaces. Researchers have been improving upon BrainGate — a brain-machine interface that allows users to control an external device with their minds — for years, but what you see here is the most advanced incarnation of the implant system to date. It is nothing short of remarkable.
Starting at around 3:10, you can watch Cathy Hutchinson — who has been paralyzed from the neck down for 15 years — drink her morning coffee by controlling a robotic arm using only her mind. According to research published in today's issue of Nature, Hutchinson is one of two quadriplegic patients — both of them stroke victims — who have learned to control the device by means of the BrainGate neural implant. The New York Times reports that it's the first published demonstration that humans with severe brain injuries can control a sophisticated prosthetic arm with such a system.
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