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Related Experiment Videos

Cerebral structural abnormalities in obsessive-compulsive disorder. A quantitative morphometric magnetic resonance

M A Jenike1, H C Breiter, L Baer

  • 1Department of Psychiatry, Massachusetts General Hospital, Boston, USA.

Archives of General Psychiatry
|July 1, 1996
PubMed
Summary

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Obsessive-compulsive disorder (OCD) is linked to widespread brain abnormalities. Patients with OCD show reduced white matter volume and increased cortical and opercular volumes compared to controls.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Radiology

Background:

  • Previous research indicated reduced white matter volume in posterior brain regions of individuals with obsessive-compulsive disorder (OCD).
  • This study aimed to investigate whole-brain volume differences in OCD patients compared to healthy controls using advanced MRI techniques.

Purpose of the Study:

  • To examine whole-brain structural differences in patients with obsessive-compulsive disorder (OCD).
  • To correlate brain volume findings with OCD symptom severity and cognitive measures.

Main Methods:

  • Magnetic resonance imaging (MRI) with a 3D volumetric protocol was used on 10 female OCD patients and 10 matched female controls.
  • Scans underwent blind normalization and segmentation using semiautomated intensity contour mapping and differential intensity contour algorithms.

Related Experiment Videos

  • Volumes of various brain structures, including neocortical regions and white matter, were measured and correlated with clinical and neuropsychological scores.

    • Main Results:

    • Patients with obsessive-compulsive disorder (OCD) exhibited significantly less total white matter volume compared to controls.
    • Conversely, OCD patients displayed significantly greater total cortex and opercular volumes.
    • Opercular volume correlated with OCD severity and nonverbal immediate memory performance.

    Conclusions:

    • The findings suggest a widespread structural brain abnormality in obsessive-compulsive disorder (OCD), extending beyond previously identified posterior regions.
    • Further research, including functional neuroimaging and neuropsychological studies, is recommended to explore the functional significance of these volumetric differences.