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Published on: November 21, 2013
Structural brain abnormalities in early onset first-episode psychosis
A K Pagsberg1, W F C Baaré, A M Raabjerg Christensen
1Department of Child and Adolescent Psychiatry, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark. kp04@bbh.hosp.dk
Journal of Neural Transmission (Vienna, Austria : 1996)
|October 7, 2006
Summary
Early brain changes in young psychosis patients show white matter abnormalities and enlarged ventricles, suggesting neurodevelopmental issues. Gray matter volume changes were not a key feature in this first-episode psychosis study.
Area of Science:
- Neuroscience
- Psychiatry
- Radiology
Background:
- First-episode psychosis in children and adolescents presents a critical window for understanding disease origins.
- Investigating brain structure in early psychosis is crucial for identifying neurodevelopmental trajectories.
Purpose of the Study:
- To investigate brain morphometry in pediatric and adolescent patients experiencing their first episode of psychosis.
- To compare brain structure between patients with first-episode psychosis and healthy controls.
Main Methods:
- Utilized high-resolution 3D T1-weighted magnetic resonance imaging (MRI) for brain scans.
- Employed optimized voxel-based morphometry (VBM) to analyze structural differences.
- Compared 29 patients (aged 10-18) with various psychotic disorders against 29 matched controls.
Main Results:
- Observed frontal white matter abnormalities in patients with first-episode psychosis.
- Found significantly larger lateral ventricles in schizophrenia patients compared to controls.
- Identified a negative correlation between antipsychotic medication duration/dose and global gray matter volume in minimally medicated patients.
Conclusions:
- White matter changes and enlarged lateral ventricles at illness onset suggest aberrant neurodevelopment in schizophrenia spectrum disorders.
- Gray matter volume reductions do not appear to be a primary characteristic of early-onset first-episode psychosis.
- Findings highlight the importance of neurodevelopmental factors in the pathogenesis of early psychosis.
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