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1: Epilepsia. 2007 Dec;48(12):2365-8. Epub 2007 Jul 21.
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Spatial neglect during electrocortical stimulation mapping in the right hemisphere.

Kleinman JT, Sepkuty JP, Hillis AE, Lenz FA, Heidler-Gary J, Gingis L, Crone NE.

Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA.

Spatial processing was assessed following implantation of subdural electrodes in the nondominant hemisphere with electrocortical stimulation mapping (ESM) in two patients before epilepsy surgery. The first patient had mild hemispatial neglect/extinction during ESM of posterior temporal and inferior parietal areas. These areas were resected, and the patient had postoperative deficits that were similar to those occurring with ESM. The second patient was found to have marked hemispatial neglect during stimulation of parietal areas. These areas were not resected, and the patient had no neglect following surgery. These results suggest that ESM can help predict spatial processing deficits associated with cortical resection, and may help prevent postoperative impairments following resection in right parietal or temporal regions.

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PMID: 17645542 [PubMed - indexed for MEDLINE]