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Comment Vaporware (Score 1) 186

What the guys at NeuroSky are describing is complete vaporware. I work with brain signal data myself and know quite a few people who do. Basically, at present there are two methods that kind of work:

You implant a bunch of electrodes into a person's brain. See Michael Black's work (Brown University) on analyzing this data. You get roughly 30 bit per minute out of this. With some training a bit more. This is done for people who are seriously disabled, i.e. quadruplegics where you implant the electrodes in the motor cortex (useless for people who cannot move their limbs).

An alternative is to use EEGs. They usually come with about 100 electrodes, take an hour to put on and require lots of conductive gel. For instance Klaus Muller's group (Fraunhofer Institute Berlin) does such work. They get up to 20 bit per minute data rates. And yes, you can play simple games (they've got a cool demo of a person playing pong using the electrodes).

The big caveat is that there's just absolutely no way you can put a few electrodes onto your brain and get the information out that the NeuroSky people are claiming. The entire stuff looks really fishy, when you check their homepage http://www.neurosky.com/. Pretty much no information on who does the work, what their technology is, etc.

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