false positives? (Score 4, Interesting)

I remember reading about the research behind that; that the "subconscious" detected things quicker than the conscious human. But if I could find it again, I'd like to see the details of the testing.

My guess is that the time between subconsciously and consciously recognizing something is used for verifications. So you get quicker results in the case where the image is, in fact, what you are asked to recognise, but you'd get false positives in the other cases.

I mean, recognizing threats is pretty important, evolution-wise. Since this device just takes existing data from the brain and feeds it back in, it's hard to believe it would be of any help, or we would have evolved the same thing.