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There's increasing if circumstantial evidence that rhythmic waves of brain activity, called oscillations, play a role in Parkinson's movement problems -- and that interrupting those abnormal waves allows the more normal, symphony-like brain cell firing to resume, said Dr. Walter Koroshetz, deputy director of the National Institute of Neurological Disorders and Stroke, which helped fund the work.
The spinal cord stimulation appears to have sent a signal up to the brain that interrupted those oscillations.
Koroshetz cautioned that much work remains, including testing whether the stimulator's effect might last long enough to be useful.
But, "it's something that has definitely got some scientific traction to it," he said. "It's a really good idea."
Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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