BCI – Brain Computer Interface control of prosthetic arm gives hope to paralegics through neuro-prosthetic solutions: “Snap, crackle, pop. I’m listening to a brain talking in a language that seems unintelligible, a chorus of millions of neurons firing, sounding to my ear like the electrical fuzz of a shortwave radio between stations. Then comes a distinctive “pop.” I hear it again: “pop.” I am watching a video. The brain in question belongs to a bearded man … has a round, titanium pedestal protruding half an inch from his head on the right side near the crown. Attached to the pedestal, surgically implanted beneath Nagle’s skull, is an array of electrodes on a chip contiguous to the part of his brain that controls motor ac­tivity. The chip is the size of a baby aspirin: its 100 tiny hair-thin electrodes pick up the electrical signals transmitted by the brain, each electrode capturing signals from a few nearby neurons. As demonstrated in a video I watched late last year, a square, gray plug is screwed onto the pedestal; the plug is attached by wires to a nearby computer. When Nagle’s neurons fire, the impulses are read and decoded by software that can interpret the electrical pops of sets of neurons. The computer reads Nagle’s thoughts—or at least the pops recorded by the electrodes—and deciphers a few simple commands spoken in the electrical language of the brain.”
(from technology review.com)

Related Topic: FES – Functional Electrical Stimulation

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