Cortical Thinning Timelines Predict Adolescent Mental Health Risks
A large-scale study of nearly 12,000 US children reveals that the pace of cerebral cortex thinning during early adolescence can predict the onset of depression and anxiety up to four years before symptoms appear. Researchers mapped brain development using 30,000 MRI scans, finding that sensory areas mature first, followed by regions responsible for complex thought. The findings suggest that mental health vulnerabilities may stem from disruptions in the brain's developmental timeline rather than isolated circuit defects, potentially linked to pre-birth genetic factors. While the data offers a detailed population-level map of cortical maturation, experts caution that these trends are too subtle for individual clinical prediction.