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Cortical thinning and hippocampal expansion as brain signatures of attention deficit hyperactivity disorder symptom trajectories

Abstract

Clinical heterogeneity in the symptom trajectories of attention deficit hyperactivity disorder (ADHD) is well documented, but their neurodevelopmental mechanisms remain unclear. We used a longitudinal cohort of adolescents (ABCD; n = 7,436) to show that persistent, remitting and emergent ADHD symptom trajectories correlated with persistent, improving and worsening behavioral changes, respectively. Each trajectory had distinct brain signatures: faster cortical thinning (persistence), slower thinning (emergence) and faster subcortical expansion (remission). Slower cortical thinning in the right posterior cingulate was associated with inattention symptom increase, whereas faster hippocampal expansion was associated with inattention symptom decrease. These signatures enhance ADHD symptom prediction at age 13 and generalize to young adults (age 23) in the IMAGEN cohort. The hippocampal signature for remitting symptoms was replicated in IMAGEN and two clinical cohorts (ADHD-200 and ADHD-1000). Given that baseline ADHD medication use was not significantly associated with the remitting trajectory, our findings suggest that current treatments may not facilitate sustained remission, highlighting the potential for new interventions.

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Fig. 1: The distinct trajectories of ADHD symptoms and their differences in functional and genetic profiles.
The alternative text for this image may have been generated using AI.
Fig. 2: Brain signatures of ADHD symptom trajectories.
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Fig. 3: Transcriptomic and neurotransmitter findings.
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Fig. 4: Subsequent ADHD symptom prediction and validation.
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Fig. 5: The updated developmental models of ADHD symptom trajectories.
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Data availability

Data are publicly released on an annual basis through the NDA (https://nda.nih.gov/abcd). The ABCD Study data are openly available to qualified researchers for free. Access can be requested at https://nda.nih.gov/abcd/request-access. The ABCD data used in this report came from the ABCD Study at https://doi.org/10.15154/z563-zd24. The IMAGEN study data are available upon application: https://www.imagen-project.org/. ADHD-200 data are available from a dedicated database (http://fcon_1000.projects.nitrc.org/indi/adhd200). ADHD-1000 data were downloaded from the https://nda.nih.gov/study.html?id=1938. Summary statistics of genome-wide association studies for ADHD are publicly available and can be downloaded from https://pgc.unc.edu/for-researchers/download-results/. The transcriptomic data were downloaded from the AHBA (https://human.brain-map.org/). Due to participant privacy and institutional data-use restrictions, the ADHD-Shanghai dataset cannot be publicly shared. The data are available from the corresponding author upon reasonable request and subject to institutional approval. Source data are provided with this paper.

Code availability

Code for the replication of analyses conducted in the paper can be retrieved from https://github.com/DanTouHaHa/Neurodevelopmental-Correlates-of-ADHD-Symptom-Trajectories. Brain visualizations were generated by the authors using the ENIGMA Toolbox66 (https://enigma-toolbox.readthedocs.io/).

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Acknowledgements

This study was partially supported by grants from the National Key Research and Development Program of China (number 2023YFE0109700) (Q. Luo), the National Natural Science Foundation of China (numbers 82272079 and 32441107) (Q. Luo) and the Program of Shanghai Academic Research Leader (number 23XD1423400) (Q. Luo). Data used in the preparation of this article were obtained from the ABCD Study (https://abcdstudy.org), held in the NIMH Data Archive (NDA). This is a multisite, longitudinal study designed to recruit more than 10,000 children aged 9–10 and follow them for over 10 years into early adulthood. The ABCD Study is supported by the National Institutes of Health (NIH) and additional federal partners under award numbers U01DA041048, U01DA050989, U01DA051016, U01DA041022, U01DA051018, U01DA051037, U01DA050987, U01DA041174, U01DA041106, U01DA041117, U01DA041028, U01DA041134, U01DA050988, U01DA051039, U01DA041156, U01DA041025, U01DA041120, U01DA051038, U01DA041148, U01DA041093, U01DA041089, U24DA041123 and U24DA041147. A full list of supporters is available at https://abcdstudy.org/federal-partners.html. A list of participating sites and a complete list of the study investigators can be found at https://abcdstudy.org/consortium_members/. ABCD consortium investigators designed and implemented the study and/or provided data but did not necessarily participate in the analysis or writing of this report. This manuscript reflects the views of the authors and may not reflect the opinions or views of the NIH or ABCD consortium investigators. The ABCD data repository grows and changes over time. The ABCD data used in this report came from the ABCD Study at https://doi.org/10.15154/z563-zd24. This work also received support from the following sources: the European Union-funded FP6 Integrated Project IMAGEN (Reinforcement-related behavior in normal brain function and psychopathology; LSHM-CT- 2007-037286), the Horizon 2020-funded ERC Advanced Grant ‘STRATIFY’ (Brain network based stratification of reinforcement-related disorders; 695313), Horizon Europe ‘environMENTAL’, grant number 101057429, UK Research and Innovation Horizon Europe funding guarantee (10041392 and 10038599), Human Brain Project (HBP SGA 2, 785907, and HBP SGA 3, 945539), the Chinese government via the Ministry of Science and Technology (MOST), the German Center for Mental Health (DZPG), the Bundesministerium für Bildung und Forschung (BMBF grants 01GS08152 and 01EV0711, Forschungsnetz AERIAL 01EE1406A and 01EE1406B and Forschungsnetz IMAC-Mind 01GL1745B), the Deutsche Forschungsgemeinschaft (DFG grants SM 80/7-2, SFB 940, TRR 265 and NE 1383/14-1), the Medical Research Foundation and Medical Research Council (grants MR/R00465X/1 and MR/S020306/1), the NIH-funded ENIGMA grants (5U54EB020403-05, 1R56AG058854-01 and U54 EB020403), NIH R01DA049238, the NIH, Science Foundation Ireland (16/ERCD/3797) and NSFC grant 82150710554. Further support was provided by grants from the ANR (ANR-12-SAMA-0004 and AAPG2019 – GeBra), the Eranet Neuron (AF12-NEUR0008-01 – WM2NA and ANR-18-NEUR00002-01 – ADORe), the Fondation de France (00081242), the Fondation pour la Recherche Médicale (DPA20140629802), the Mission Interministérielle de Lutte-contre-les-Drogues-et-les-Conduites-Addictives (MILDECA), the Assistance Publique–Hôpitaux de Paris and INSERM (interface grant), Paris Sud University IDEX 2012, the Fondation de l’Avenir (grant AP-RM-17-013) and the Fédération pour la Recherche sur le Cerveau.

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Q. Luo and W.H. had full access to the data. Q. Luo proposed and designed the study. D.Z., L.L., T.B., G.J.B., A.L.W.B., R.B., S.D., H.F., H.G., P.G., A.G., A.H., J.-L.M., M.-L.P.M., E.A., F.N., D.P.O., L.P., M.N.S., S.H., N.V., H.W., R.W. and G.S. acquired the data. W.H. and Q. Luo analyzed the data. W.H. and Q. Luo drafted the paper. L.Y., B.J.S. D.Z., C.L., Z.G., L.C., S.C. and T.B. made critical edits to the paper. All authors contributed to the interpretation of results. All authors contributed to the visualization. All authors read and approved the paper.

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Correspondence to Qiang Luo.

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Competing interests

S.C. has declared reimbursement for travel and accommodation expenses from the Association for Child and Adolescent Central Health (ACAMH) in relation to lectures delivered for ACAMH, the Canadian AADHD Alliance Resource, the British Association of Psychopharmacology, Healthcare Convention and CCM Group team for educational activity on ADHD, and has received honoraria from Medice. T.B. served in an advisory or consultancy role for Eye Level, Infectopharm, Medice, Neurim Pharmaceuticals, Oberberg GmbH and Takeda. He received conference support or speaker’s fees from Janssen-Cilag, Medice and Takeda. He received royalties from Hogrefe, Kohlhammer, CIP Medien and Oxford University Press. The present work is unrelated to the above grants and relationships. L.P. served in an advisory or consultancy role for Roche and Viforpharm and received speaker’s fees from Shire. She received royalties from Hogrefe, Kohlhammer and Schattauer. The present work is unrelated to the above grants and relationships. The other authors declare no competing interests.

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Differences in environmental, functional, genetic and neuroimaging features among ADHD symptom trajectory subgroups.

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Biological processes and neurotransmitter systems associated with ADHD symptom trajectories.

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Hou, W., Zhu, D., Sahakian, B.J. et al. Cortical thinning and hippocampal expansion as brain signatures of attention deficit hyperactivity disorder symptom trajectories. Nat. Mental Health 4, 263–278 (2026). https://doi.org/10.1038/s44220-025-00578-1

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