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Structural brain imaging in schizophrenia

A Pfefferbaum1, L Marsh

  • 1Psychiatry Service, Department of Veterans Affairs Medical Center, Palo Alto, CA 94304, USA.

Clinical Neuroscience (New York, N.Y.)
|January 1, 1995
PubMed
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Neuroimaging reveals brain abnormalities like enlarged ventricles and widened sulci in schizophrenia, primarily affecting gray matter in the frontal and temporal lobes. These developmental changes suggest a static origin, posing challenges for clinical significance assessment.

Area of Science:

  • Neuroimaging
  • Psychiatry
  • Neuroscience

Background:

  • Schizophrenia is associated with brain dysmorphology.
  • In vivo neuroimaging has identified global features like ventriculomegaly and sulcal dilation.
  • Specific structure dysmorphology is inconsistently observed.

Purpose of the Study:

  • To characterize global brain dysmorphology in schizophrenia using in vivo neuroimaging.
  • To explore reasons for inconsistent findings in specific brain structures.
  • To investigate the developmental origins and progression of these brain changes.

Main Methods:

  • Utilized in vivo neuroimaging techniques.
  • Analyzed global brain features, including ventricles and sulci.
  • Considered factors like imaging techniques, variance control, and sample characteristics.

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Main Results:

  • Observed ventriculomegaly and widespread sulcal dilation, predominantly in frontal and temporal gray matter.
  • Inconsistent in vivo findings for basal ganglia and hippocampus dysmorphology.
  • Epidemiological data suggest a developmental origin with limited progressive change.

Conclusions:

  • Schizophrenia involves widespread, likely developmental, brain dysmorphologies.
  • Clinical significance of static brain changes requires further investigation.
  • Combined cross-sectional and longitudinal studies are recommended to establish clinical relevance.