New York Times: Sizing Up Consciousness by Its Bits

SCIENCE   | September 21, 2010
By CARL ZIMMER Researchers want to build a meter that can measure consciousness as easily as body temperature.

http://www.nytimes.com/2010/09/21/science/21consciousness.html?pagewanted=1&_r=1&emc=eta1

One day in 2007, Dr. Giulio Tononi lay on a hospital stretcher as an anesthesiologist prepared him for surgery. For Dr. Tononi, it was a moment of intellectual exhilaration. He is a distinguished chair in consciousness science at the University of Wisconsin, and for much of his life he has been developing a theory of consciousness. Lying in the hospital, Dr. Tononi finally had a chance to become his own experiment.

The anesthesiologist was preparing to give Dr. Tononi one drug to render him unconscious, and another one to block muscle movements. Dr. Tononi suggested the anesthesiologist first tie a band around his arm to keep out the muscle-blocking drug. The anesthesiologist could then ask Dr. Tononi to lift his finger from time to time, so they could mark the moment he lost awareness...

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