Voxel-based morphometry in schizophrenia: implications for neurodevelopmental connectivity models, cognition and...

Area of Science:

• Neuroimaging
• Psychiatry
• Neuroscience

Background:

• Schizophrenia is associated with gray and white matter abnormalities.
• Voxel-based morphometry (VBM) is a key neuroimaging technique for studying these changes.
• Research has expanded from chronic schizophrenia to first-episode and high-risk groups.

Purpose of the Study:

• To review VBM evidence in chronic schizophrenia.
• To examine VBM findings in first-episode and high-risk schizophrenia groups.
• To correlate neuroimaging findings with neurodevelopmental and cognitive data.

Main Methods:

• Systematic review of VBM studies.
• Analysis of gray and white matter volume differences.
• Comparison of findings across patient groups (chronic vs. first-episode/high-risk).

Main Results:

• Consistent gray matter reduction in the superior temporal cortex in chronic schizophrenia patients.
• Consistent gray matter reduction in frontal brain regions in first-episode/high-risk individuals.
• Evidence suggests neurodevelopmental deviations underlying these structural changes.

Conclusions:

• VBM studies consistently identify distinct structural abnormalities in schizophrenia across different stages.
• Findings in first-episode/high-risk groups highlight potential early neurodevelopmental origins.
• Structural changes correlate with neuroimaging and behavioral measures of cognition.