MatthewVD writes: "Noninvasive means of controlling machines via the mind, in the form of stick-on electronics that look like temporary tattoos, could soon enable people to talk over smartphones with only their minds, according to Todd Coleman at the University of California, San Diego. It's become increasingly viable to control devices, such as robotic arms, with brainwaves, but it still requires invasive implants. The new devices can detect signals linked with brain waves through the skin — though with less accuracy. The possibilities are almost limitless."
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