You know that the future's here when technology arrives that allows vehicles to be controlled with nothing but a thought. Ambient, in partnership with the Rehabilitation Institute of Chicago, has developed a wheelchair that can be instructed to move when the driver thinks about certain words. The key component is a larynx control system called the Audeo, developed by the founders of Ambient, Michael Callahan and Thomas Coleman. The New Scientist has a video demonstration of the unit, which is surprisingly eerie without the usual subtle twitch of a hand that accompanies regular motorized wheelchairs. The next stage in the project -- externally recognizing individual words imagined in the brain -- is apparently a while off: still, we think a thought controlled anything at this stage in the game is a major feat.

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