The interface consists, essentially, of a keyboard displayed on a computer screen. "The way this works is that all the letters come up, and each one of them flashes individually," says Williams. "And what your brain does is, if you're looking at the 'R' on the screen and all the other letters are flashing, nothing happens. But when the 'R' flashes, your brain says, 'Hey, wait a minute. Something's different about what I was just paying attention to.' And you see a momentary change in brain activity."
Something about this reminds me of Portal turret droids. Standing around all day with nothing to do but focus their attention on moving objects. Gotta love this HUH-larious riff on Portal. Ahh, Portal, how do I love thee? One of the few games I have ever played longer than an hour AND which I have won. That has to be some kind of big endorsement: even non-gamer nerds like it.
Hat tip to Mindful Hack… such a great blog.