The end result looks a little like mind reading, but it's done by subtly measuring electrical impulses showing an intent to move. The wristbands use EMG, or electromyography (the electrical measurement of muscles) to measure tiny muscle impulses.Ī feedback-based training process gradually allowed the wearers to start shrinking down their actions, eventually using only a single motor neuron, according to Thomas Reardon, Reality Labs' Director of Neuromotor Interfaces and former CEO of CTRL-Labs, who talked us through the demos in Redmond. They became so subtle that their hands barely twitched, and still they played the game. Wearing the bulky wristbands wired to computers, the wearers moved their fingers to make a cartoon character swipe back and forth in an endless-running game. It's a hard concept to fully absorb, but Meta's demo, shown by a couple of trained researchers, gave me some idea of it. He was describing the wristbands that Meta has discussed multiple times since acquiring CTRL-Labs in 2019. "Co-adaptive learning," Michael Abrash, Meta's Reality Labs' chief scientist, told me over and over again. A demo of EMG wristbands measuring motor neurons, at Meta Reality Labs Research Meta Neural inputs: Wristbands that adapt to you
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