PsyPost: brain patterns predict ADHD

PsyPost on May 24 reported a new ADHD study from *Nature Mental Health* that tracked how adolescent brain development differed across symptom paths over time. The paper said childhood ADHD symptoms did not follow a single fixed course in adolescence, but instead clustered into remission, persistence and emergence patterns tied to distinct structural brain changes. (nature.com) The study identified cortical thinning and hippocampal expansion as two of the main markers associated with those trajectories. The work was published online on February 10 and was conducted by researchers writing for the IMAGEN Consortium. ### Which brain changes did the researchers tie to symptom change? (nature.com) The *Nature Mental Health* paper reported that adolescents whose ADHD symptoms remitted showed faster subcortical expansion, particularly in the hippocampus. The same study linked other symptom trajectories to different patterns of cortical maturation, including slower cortical thinning in adolescents with emergent symptoms. The hippocampus is better known for roles in memory and learning than for ADHD headlines, which is one reason this finding stands out. The paper did not present ADHD as a single static brain state; it described symptom courses as developmentally variable and associated with measurable differences in how specific regions changed during adolescence. (nature.com) ### Does this mean some teens simply “outgrow” ADHD? PsyPost’s account said the findings point to variability rather than a fixed outcome for every child diagnosed earlier in life. The study’s framing was narrower than a blanket claim that ADHD disappears: some adolescents improved, some remained symptomatic and some developed clinically significant symptoms later. (nature.com) That distinction matters because the paper examined trajectories, not a one-time snapshot. The authors were asking whether brain development patterns tracked with changes in symptoms over time, and their answer was yes, at least at the group level captured in the study. (nature.com) ### How far does this research go right now? The paper in *Nature Mental Health* is a longitudinal neuroimaging study, not a clinical test now used in routine care. The findings suggest that brain scans may eventually help researchers understand which adolescents are more likely to see symptoms fade, persist or worsen, but the current result is still research-stage evidence. (psypost.org) The IMAGEN Consortium paper also fits into a broader ADHD literature showing that symptom patterns can fluctuate across development. That makes the new result notable less as a diagnostic shortcut than as evidence that developmental timing and brain maturation are part of the story. (nature.com) ### What is the practical takeaway for schools and families? The study does not offer a classroom intervention manual, and the paper does not say teachers can infer brain changes from behavior alone. But the developmental pattern it describes is consistent with a lower-friction approach to support: shorter instructions, clearer task entry, visible routines and fewer demands on working memory. (nature.com) That is an inference from the findings, not a direct quote from the paper. ADHD research has long argued against treating attention and impulse-control differences as simple defiance. This study adds another piece of evidence that symptom severity in adolescence can move with development, rather than remaining locked in place from childhood onward. (kclpure.kcl.ac.uk) ### Who conducted the study, and where can readers find it? The accepted manuscript identifies Wenjie Hou, Daqian Zhu, Barbara J. Sahakian, Samuele Cortese and Qiang Luo among the authors, writing for the IMAGEN Consortium. The article is titled “Cortical thinning and hippocampal expansion as brain signatures of attention deficit hyperactivity disorder symptom trajectories,” with DOI 10.1038/s44220-025-00578-1. (nature.com) The paper was published online on February 10, 2026, in *Nature Mental Health*, and PsyPost summarized it on May 24, 2026. Readers looking for the next step can find the full study through the journal record or the King’s Research Portal manuscript listing. (ncbi.nlm.nih.gov) (nature.com) (kclpure.kcl.ac.uk)