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Thursday
CME Teaching Brief® - MedPage Today - Strokes Stop Essential Brain Crosstalk
ST. LOUIS, March 14 -- Spatial neglect -- a common attention-deficit sequel to stroke -- appears to be caused by a lack of communication between two regions of the brain, according to researchers here. The finding contradicts the traditional explanation that spatial neglect is caused by damage to a specific brain region, said Maurizio Corbetta, M.D., of Washington University. Instead, magnetic resonance imaging showed that patients with neglect -- in which patients have difficulty paying attention to one side of their bodies or the visual field -- have disrupted connections between dorsal and ventral frontoparietal attention networks, reported Dr. Corbetta and colleagues in the March 15 issue of Neuron. "For more than a century, we have linked neurological deficits and their recovery to the damage done to neurons directly affected by a stroke or other injury," Dr. Corbetta said in a statement. ...[MORE] |
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