http://www.physorg.com/news/2011-01-xwave-iphone-mind.html
A new application for the iPhone, the XWave, lets you read your own mind via a headset clamped to your head and connected to the phone’s audio jack. As you focus your mind on a task the graphics are changed — a ball may move higher for instance, or your state of relaxation may be indicated by changes in a pulsating color, which moves towards blue as you become more relaxed.
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