Neuroimaging in schizophrenia has shown differences in which brain areas?

• A. Differences in white matter connectivity and gray matter volume in the prefrontal and temporal cortices
• B. No structural differences detected
• C. Only subcortical changes observed
• D. Neuroimaging findings are limited to functional changes without structure

Answer: (A)

Neuroimaging in schizophrenia shows structural changes in the brain, particularly in cortical regions and their connections. The most consistent findings are reduced gray matter volume in the prefrontal and temporal cortices, which relates to problems with executive function, memory, and language. Alongside this, white matter connectivity is often disrupted, with compromised integrity of frontotemporal tracts and interhemispheric pathways like the corpus callosum, observable on diffusion imaging as lower fractional anisotropy and altered tract coherence. This combination points to a network-level disruption, not just isolated regional changes. Some studies also report subcortical involvement, but the prominent pattern that aligns with imaging data across many studies is gray matter loss in the prefrontal and temporal regions plus white matter connectivity alterations. Choices that claim no structural differences or that changes are limited to function without structure don’t fit the imaging evidence.