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. 2025 Aug 12:S0006-3223(25)01405-2.
doi: 10.1016/j.biopsych.2025.08.003. Online ahead of print.

Shared and distinct alterations in brain structure of youth with internalizing or externalizing disorders: Findings from the ENIGMA Antisocial Behavior, ADHD, MDD, and Anxiety Working Groups

Sophie Townend  1 Marlene Staginnus  2 Yidian Gao  3 Nina Alexander  4 Volker Arolt  5 Tobias Banaschewski  6 Mark A Bellgrove  7 Vivek Benegal  8 Robert J Blair  9 Laura Blanco-Hinojo  10 Ole Jonas Boeken  11 Joscha Böhnlein  5 Sven Bölte  12 Linda M Bonnekoh  13 Daniel Brandeis  14 Rodrigo A Bressan  15 Fabian Breuer  5 Willem B Bruin  16 Jan K Buitelaar  17 Katie L Burkhouse  18 Monica E Calkins  19 Marta Cano  20 Narcis Cardoner  20 Hui Chen  21 Xianliang Chen  21 David R Coghill  22 Olivier F Colins  23 Colm G Connolly  24 Michael C Craig  25 Kathryn R Cullen  26 Udo Dannlowski  5 Christopher G Davey  27 Andrea Dietrich  28 Daifeng Dong  29 Christine M Freitag  30 Thomas Frodl  31 Liesbet Goossens  32 Dominik Grotegerd  5 Raquel E Gur  33 Ruben C Gur  34 Jan Haavik  35 Cindy C Hagan  36 Tim Hahn  5 Alfons O Hamm  37 Ben J Harrison  27 Catharina A Hartman  38 Martin J Herrmann  39 Tiffany C Ho  40 Pieter J Hoekstra  28 Bharath Holla  41 Karim Ibrahim  42 Andrea Jackowski  43 Hamidreza Jamalabadi  44 Yali Jiang  45 Tilo Kircher  44 Kerstin Konrad  46 Anna Kraus  5 Jonna Kuntsi  47 Till Langhammer  48 Luisa Lazaro  49 Elisabeth J Leehr  5 Ulrike Lueken  50 Ren Ma  51 Frank P MacMaster  52 Gisele G Manfro  53 Anne Martinelli  54 Hannah Meinert  5 Susanne Meinert  55 Jarosław M Michałowski  56 Qingsen Ming  57 Robert Moeck  58 Lilianne R Mujica-Parodi  59 Benson Mwangi  60 Janina Neufeld  61 Joel T Nigg  62 Ruth L O'Gorman Tuura  63 Hyuntaek Oh  64 Jaap Oosterlaan  65 Yannis Paloyelis  66 Pedro M Pan  15 Luca Passamonti  67 Wenceslao Peñate  68 K Luan Phan  69 Kerstin J Plessen  70 Jesus Pujol  71 Karl Lundin Remnélius  72 Francisco Rivero  73 Katya Rubia  74 Ramiro Salas  75 Giovanni A Salum  76 Theodore D Satterthwaite  77 Anne Schienle  78 Elisabeth Schrammen  5 Koen R J Schruers  79 Gunter Schumann  80 Arjun Sethi  25 Tim Silk  81 Norbert Skokauskas  82 Jordan Smoller  83 Jair C Soares  60 Lin Sørensen  84 Christina Stadler  85 Michael C Stevens  86 Benjamin Straube  44 Thomas Straube  58 Andreas Ströhle  87 Gustavo Sudre  88 Denis G Sukhodolsky  42 Kate Sully  89 Xiaoqiang Sun  51 Chad M Sylvester  90 Nicola Toschi  91 Steven J A van der Werff  92 Alasdair Vance  93 Robert Vermeiren  94 Albert Wabnegger  78 Xiaoping Wang  21 Julia Wendt  95 Sarah Whittle  96 Julian Wiemer  97 Anderson M Winkler  98 Hans U Wittchen  99 Mon-Ju Wu  60 Qiong Wu  100 Tony T Yang  101 Yunbo Yang  102 Shuqiao Yao  51 Jibiao Zhang  51 Jiansong Zhou  21 Andre Zugman  103 Giovana B Zunta-Soares  60 Peter M Zwanzger  104 Sophia I Thomopoulos  105 Neda Jahanshad  105 Paul M Thompson  105 Kevin Hilbert  106 Arielle Baskin-Sommers  107 Charlotte A M Cecil  108 Moji Aghajani  16 Daniel S Pine  109 Nic J A van der Wee  92 Dan J Stein  110 Nynke A Groenewold  111 Janna Marie Bas-Hoogendam  112 Laura K M Han  113 Elena Pozzi  96 Lianne Schmaal  96 Barbara Franke  114 Martine Hoogman  115 Esther Walton  2 Stephane A De Brito  116 Graeme Fairchild  2 ENIGMA Antisocial Behavior, Anxiety, ADHD, and MDD Working Groups
Affiliations

Shared and distinct alterations in brain structure of youth with internalizing or externalizing disorders: Findings from the ENIGMA Antisocial Behavior, ADHD, MDD, and Anxiety Working Groups

Sophie Townend et al. Biol Psychiatry. .

Abstract

Background: Externalizing and internalizing disorders are common in youth but are often studied separately, preventing researchers from identifying shared (i.e., transdiagnostic) alterations in brain structure. Using data from the ENIGMA Consortium, we conducted a mega-analysis to identify shared and distinct cortical and subcortical brain alterations across internalizing (anxiety disorders and depression) and externalizing disorders (attention-deficit/hyperactivity disorder [ADHD] and conduct disorder [CD]) in youth.

Methods: 3D T1-weighted MRI data from youth (aged 4-21 years) with anxiety disorders (n=1,044), depression (n=504), ADHD (n=1,317), and CD (n=1,172), along with healthy controls (n=4,743) were analyzed. We assessed group differences in regional cortical thickness, surface area, and subcortical volume using linear models, adjusted for site, age, and sex, and total intracranial volume in the surface area and subcortical volume models.

Results: We observed transdiagnostic associations, with both internalizing and externalizing disorders characterized by lower surface area in the insula, entorhinal cortex, and middle temporal gyrus, and lower amygdala volume (Cohen's ds=-0.07 to -0.24), as well as total surface area and intracranial volume (ds=-0.11 to -0.25). Externalizing-specific reductions in surface area were observed in fronto-parietal regions (ds=-0.08 to -0.13), but no internalizing-specific associations were identified. Disorder-specific alterations were identified for ADHD, CD, and anxiety disorders, but not depression.

Conclusions: Both common and disorder-specific alterations were identified, with regions involved in salience attribution and emotion processing implicated across internalizing and externalizing disorders. These findings can guide future research targeting common biological processes across youth psychiatric disorders as well as features unique to individual disorders.

Keywords: Child and adolescent psychiatry; ENIGMA; Meta-analysis; Structural MRI; Transdiagnostic; Youth.

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