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    Schizophr Res. 1998 Nov 30;34(3):133-42.

    Differential amygdala activation in schizophrenia during sadness.

    Source

    Department of Psychiatry, University of Düsseldorf, Germany. frank.schneider@uni-duesseldorf.de

    Abstract

    Several studies have reported impaired emotion processing in schizophrenic patients. However, the corresponding functional cerebral correlates of such impairment have not been fully understood, leaving the neurobiological basis of their affective symptoms unknown. Functional magnetic resonance imaging (fMRI) was utilized to examine brain activity in subcortical and cortical regions of 13 medicated male schizophrenic patients and 13 matched healthy controls during happy and sad mood induction. Results show brain activity in the amygdala of normal controls during negative affect, which is in line with previous neuroimaging findings. Unlike controls, schizophrenic patients have not demonstrated amygdala activation during sadness despite matched ratings to normal controls indicating a similar negative affect. Recognizing that structural abnormalities exist in the amygdala of schizophrenic patients, our results provide new evidence of functional abnormalities in the limbic system.

    PMID:
    9850979
    [PubMed - indexed for MEDLINE]

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