A crack team of neuroscientist engineers from the University of Minnesota have created the first brain-computer interface (BCI) that allows the human user to navigate a 3D space. In testing, subjects flew a virtual helicopter through randomly-placed rings with an 85% success rate, and at an impressive speed: some testers managed to fly through 11 consecutive rings within five minutes. If you want to see it for yourself, there’s a video embedded below.
Just like the BCI-controlled bicycles and carsthat we covered back in August, the Minnesota team used an EEG cap – a net of 64 electrodes on the scalp that measure brain waves — and some complex software to work out, in real time, what maneuver the helicopter pilot is trying to perform. To do this, each test subject had to train the system to his individual brain waves by repeatedly moving a cursor on a screen, by thinking about moving his arms, legs, and tongue. The software was also slightly customized for each subject, to increase accuracy.
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