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Brain imaging in functional mental disorders.

T Young, P Williamson

    Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie
    |October 1, 1986
    PubMed
    Summary
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    Brain imaging in psychiatry, including CT, PET, and MRI, shows mixed results. While early CT scans suggested abnormalities in schizophrenia, newer research indicates normal scans for most patients, with PET and EEG topography showing potential functional insights.

    Area of Science:

    • Neuroscience
    • Psychiatry
    • Medical Imaging

    Background:

    • Brain imaging techniques are increasingly applied in psychiatric research.
    • Computerized tomography (CT), EEG topography, positron emission tomography (PET), and magnetic resonance imaging (MRI) are key modalities.
    • Understanding the utility of these techniques is crucial for advancing psychiatric diagnosis and treatment.

    Purpose of the Study:

    • To review the application of major brain imaging techniques in psychiatry.
    • To evaluate the findings and limitations of CT, EEG topography, PET, and MRI in psychiatric disorders.
    • To assess the current and future potential of neuroimaging in psychiatric research.

    Main Methods:

    • Review of existing literature on brain imaging in psychiatry.

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  • Analysis of studies utilizing computerized tomography (CT).
  • Evaluation of preliminary data from EEG topography and positron emission tomography (PET).
  • Assessment of early applications of magnetic resonance imaging (MRI).

    • Main Results:

    • Early CT studies suggested structural abnormalities in schizophrenia, but recent findings show normal scans in most patients.
    • EEG topography and PET studies, though less evaluated, indicate potential functional abnormalities in schizophrenia and affective disorders.
    • Magnetic resonance imaging (MRI) shows promise for psychiatric applications but has been used sparingly to date.

    Conclusions:

    • The role of structural imaging like CT in schizophrenia is less definitive than previously thought.
    • Functional imaging techniques like PET and EEG topography offer potential insights into psychiatric disorders.
    • MRI is a promising but underutilized tool in psychiatric neuroimaging research.