Researchers Identify New ADHD Subtype

A study links a severe-combined ADHD subtype to distinct patterns of brain abnormality.

Updated on Oct. 23, 2026 in Autism

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Should medical diagnostic standards prioritize neuroimaging evidence over patient-reported symptoms?

Researchers have identified three specific ADHD subtypes, including a severe-combined form characterized by significant emotional dysregulation. This new classification is supported by evidence of brain abnormalities in 45 distinct areas.

Why it matters

The discovery could pave the way for personalized therapeutic strategies and potential future updates to standardized diagnostic manuals like the DSM. This precision medicine approach aims to improve treatment outcomes for those with ADHD.

The study analyzed 1,154 brain scans of children and adolescents to map neurobiological differences. Researchers found 45 distinct areas of brain abnormality linked to the severe-combined subtype versus 26 areas for the other two types.

The players

New York University

This institution served as the base for researchers who contributed to the study on ADHD subtypes.

SUNY Upstate Medical University

This university is the home of the medical professionals who provided commentary on the new findings.

The details

Using neuroimaging and computational modeling, the team mapped the pathways of the condition to differentiate the three subtypes. This rigorous approach allowed for the observation of neurobiological differences across a large cohort of young subjects.

2022: The DSM-5 was updated.
October 2026: The study was published in JAMA Psychiatry.

Health Landscape

This research provides the empirical evidence necessary to potentially expand the diagnostic criteria established by the Diagnostic and Statistical Manual of Mental Disorders in future versions. It marks a significant shift toward biological classification in psychiatric care.

This research could eventually change how clinicians diagnose and treat ADHD by offering more tailored therapeutic interventions. Patients may benefit from personalized strategies that account for specific neurobiological subtypes rather than a one-size-fits-all approach.

The takeaway

Understanding the specific neurobiological makeup of ADHD can lead to more effective management of symptoms. Patients and families should discuss these emerging diagnostic insights with their healthcare providers to explore potential personalized care plans.