Fully paralyzed patients could be given a chance to easily express simple "yes" and "no" phrases thanks to a newly developed method of communication. Paralyzed patients who have become "locked in" can't directly control any part of their bodies, but a research team led from the Philipp University of Marburg found that such patients may be able to indirectly control their eyes just enough to get across a message. By training the patients to dilate their pupils, the team found that they could dictate between simple answers.
via The Verge - All Posts http://www.theverge.com/2013/8/6/4594376/complete-paralysis-communication-through-math-problems
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