Study Links Schizophrenia Risk Genes to Brain Changes at Ages 9-14
Updated
Updated · BIOENGINEER.ORG · May 13
Study Links Schizophrenia Risk Genes to Brain Changes at Ages 9-14
3 articles · Updated · BIOENGINEER.ORG · May 13
Summary
More than 6,000 children showed measurable brain-development differences tied to schizophrenia genetic risk during early adolescence, years before the disorder usually appears in late adolescence or young adulthood.
Nearly 10,000 MRI scans from the ABCD and Generation R cohorts found higher polygenic risk was linked to a progressive drop in frontal cortical surface area, especially in the caudal middle and superior frontal gyrus.
Those regions support executive function and cognitive control, and the study said surface area—not cortical thickness—carried the clearest developmental signal because it is more heritable and more closely tied to schizophrenia-linked genes.
Comparisons with ADHD, autism, major depression and educational attainment found no similarly dynamic trajectory effect, suggesting schizophrenia risk leaves a more distinct neurodevelopmental signature.
Researchers said the modest population-level effects still point to early adolescence as a key window for prediction and preventive intervention, shifting focus well before symptoms emerge.
Brain scans can now spot schizophrenia risk in teens. Can we intervene before the first symptom ever appears?
A teen's shrinking frontal cortex signals future schizophrenia. What does this reveal about how our minds are built?
Unveiling Schizophrenia’s Genetic Risk in Early Adolescence: New Neuroimaging Evidence and Future Directions
Overview
A major 2026 study published in Biological Psychiatry has revealed that genetic risk for schizophrenia starts to show up in the brain during early adolescence. Researchers found that children with high genetic susceptibility experience a significant decrease in the surface area of the frontal cortex, a brain region important for development. These changes are dynamic and follow different developmental paths compared to other psychiatric risks. By identifying these early brain changes, the study offers crucial insights into how schizophrenia develops, highlighting the importance of early detection and the potential for timely intervention to alter the disorder’s progression.