FYI -- ABCNEWS.com : Computer Reads Brain Waves

Doc (doc09(AT)fuse.net)
Sat, 23 Jan 1999 06:47:56 -0500

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Interesting piece on using brain waves to write.

Doc

http://www.abcnews.go.com/sections/science/DailyNews/computer_readmind990113.html
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ABCNEWS.com : Computer Reads Brain Waves

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A Computer 'Reads' Minds
Device Allows Paralyzed People To Write Sentences

L O N D O N Jan. 13 — A device that reads brain waves through the skull has enabled paralyzed people to write sentences on a computer screen, scientists said today.

     Several teams around the world are developing systems to allow “locked in” patients to communicate, New Scientist magazine reported.
     Two patients have managed to write messages on a computer screen via electrodes planted in the brain by researchers at Emory University in Atlanta.
     Because brain surgery involves the risk of infection or hemorrhage, other groups are trying to develop systems that do not require implants.
     Now researchers in Germany and the United States have placed small electrodes on top of patients’ heads to record signals from the brain.
     Once patients learn to control the computer cursor in this way, they can begin to write messages.
     The cursor is used to select characters and researchers found patients could write a short sentence in about half an hour.
     “We’ve got patients writing messages who couldn’t communicate at all,” said Edward Taub of the University of Alabama at Birmingham.

S U M M A R Y

Electrodes connected to a computer act as surrogate synapses.

“We’ve got patients writing messages who couldn’t communicate at all.”
Edward Taub,
University of Alabama

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