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Wednesday, June 4, 2008

Brain responses to verbal stimuli among multiple sclerosis patients with pseudobulbar affect

article found on pubmed
2008 May 24. [Epub ahead of print]

Multiple Sclerosis & Brain Research Czenter, Department of Neurology, Carmel Medical Center, Haifa, Israel; Evoked Potentials Laboratory, Technion-Israel Institute of Technology, Israel; Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel.
Haiman G, Pratt H, Miller A.


PURPOSE: To characterize the brain activity and associated cortical structures involved in pseudobulbar affect (PBA), a condition characterized by uncontrollable episodes of emotional lability in patients with multiple sclerosis (MS).

METHODS: Behavioral responses and event related potentials (ERP) in response to subjectively significant and neutral verbal stimuli were recorded from 33 subjects in 3 groups: 1) MS patients with PBA (MS+PBA); 2) MS patients without PBA (MS); 3) Healthy control subjects (HC). Statistical non-parametric mapping comparisons of ERP source current density distributions between groups were conducted separately for subjectively significant and for neutral stimuli.

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