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Reading the Brain without Poking It

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University of Utah neurosurgeon Paul A. House, shown here in an operating room, led a study showing that brain signals controlling arm movements can be detected accurately using new microelectrodes that sit on the brain but don't penetrate it. Credit: Kelly Johnson / University of Utah

University of Utah

June 29, 2009

Experimental devices that read brain signals have helped paralyzed people use computers and may let amputees control bionic limbs. But existing devices use tiny electrodes that poke into the brain. Now, a University of Utah study shows that brain signals controlling arm movements can be detected accurately using new microelectrodes that sit on the brain but don't penetrate it.

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