Terence Ketter

Publication Details

  • Metabolic evidence of corticolimbic dysregulation in bipolar mania PSYCHIATRY RESEARCH-NEUROIMAGING Brooks, J. O., Hoblyn, J. C., Ketter, T. A. 2010; 181 (2): 136-140

    Abstract:

    Findings from previous research on the neural substrates of mania have been variable, in part because of heterogeneity of techniques and patients. Though some findings have been replicated, the constellation of neurophysiological changes has not been demonstrated simultaneously. We sought to determine resting state cerebral metabolic changes associated with relatively severe acute mania. Resting positron emission tomography with (18)fluorodeoxyglucose was performed in bipolar disorder patients with severe mania and in healthy controls. Statistical parametric mapping was used to determine regions of differential metabolism. Relative to controls, bipolar disorder patients with mania exhibited significantly decreased cerebral metabolism in both the dorsolateral prefrontal regions and the precuneus. Conversely, manic patients exhibited significant hypermetabolism in the parahippocampal complex, temporal lobe, anterior cingulate, and subgenual prefrontal cortex compared with controls. These results demonstrate simultaneous resting limbic/paralimbic hypermetabolism and prefrontal hypometabolism during mania. The findings support the hypothesis of corticolimbic dysregulation as a crucial contributor to the pathophysiology of bipolar disorder.

    View details for DOI 10.1016/j.pscychresns.2009.08.006

    View details for Web of Science ID 000275009200009

    View details for PubMedID 20080037

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