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Functional and structural neuroimaging studies of major depression disorder (MDD) have identified neurophysiologic abnormalities in multiple areas of the prefrontal cortex, the insula, the amygdale and the related parts of the striatum and thalamus. The functional knowledge of MDD was mainly obtained from the fMRI and PET studies, which reveal the local differences in blood oxygenation and metabolism...
Patients with psychiatric disorders such as schizophrenia commonly present with impaired language. Here we investigate language in schizophrenia with a focus on inflectional morphology, using an intensively studied and relatively well-understood linguistic paradigm. Patients with schizophrenia (n=43) and age-matched healthy control subjects (n=42) were asked to produce past tenses of regular (slip),...
Rationale Performance of cognitive tasks in nonhuman primates (NHPs) requires specific brain regions to make decisions under different degrees of difficulty or “cognitive load.” Objective Local cerebral metabolic activity ([18F]FDG PET imaging) in dorsolateral prefrontal cortex (DLPFC), medial temporal lobe (MTL), and dorsal striatum (DStr) is examined in NHPs performing a delayed-match-to-sample...
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