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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, Major Depressive Disorder, and Anxiety Working Groups

Sophie Townend  1 Marlene Staginnus  2 Yidian Gao  3 Nina Alexander  4 Volker Arolt  5 Tobias Banaschewski  6 Katja Beesdo-Baum  7 Mark A Bellgrove  8 Vivek Benegal  9 Robert J Blair  10 Laura Blanco-Hinojo  11 Ole Jonas Boeken  12 Joscha Böhnlein  5 Sven Bölte  13 Linda M Bonnekoh  14 Daniel Brandeis  15 Rodrigo A Bressan  16 Fabian Breuer  5 Willem B Bruin  17 Jan K Buitelaar  18 Katie L Burkhouse  19 Monica E Calkins  20 Marta Cano  21 Narcis Cardoner  21 Hui Chen  22 Xianliang Chen  22 David R Coghill  23 Olivier F Colins  24 Colm G Connolly  25 Michael C Craig  26 Kathryn R Cullen  27 Udo Dannlowski  28 Christopher G Davey  29 Andrea Dietrich  30 Daifeng Dong  31 Christine M Freitag  32 Thomas Frodl  33 Liesbet Goossens  34 Dominik Grotegerd  5 Raquel E Gur  35 Ruben C Gur  36 Jan Haavik  37 Cindy C Hagan  38 Tim Hahn  5 Alfons O Hamm  39 Ben J Harrison  29 Catharina A Hartman  40 Martin J Herrmann  41 Tiffany C Ho  42 Pieter J Hoekstra  30 Bharath Holla  43 Karim Ibrahim  44 Andrea Jackowski  45 Hamidreza Jamalabadi  46 Yali Jiang  47 Tilo Kircher  46 Kerstin Konrad  48 Anna Kraus  5 Jonna Kuntsi  49 Till Langhammer  50 Luisa Lazaro  51 Elisabeth J Leehr  5 Ulrike Lueken  52 Ren Ma  53 Frank P MacMaster  54 Gisele G Manfro  55 Anne Martinelli  56 Hannah Meinert  5 Susanne Meinert  57 Jarosław M Michałowski  58 Qingsen Ming  59 Robert Moeck  60 Markus Muehlhan  61 Lilianne R Mujica-Parodi  62 Benson Mwangi  63 Janina Neufeld  64 Joel T Nigg  65 Ruth L O'Gorman Tuura  66 Hyuntaek Oh  67 Jaap Oosterlaan  68 Yannis Paloyelis  69 Pedro M Pan  16 Luca Passamonti  70 Wenceslao Peñate  71 K Luan Phan  72 Kerstin J Plessen  73 Jesus Pujol  74 Karl Lundin Remnélius  75 Francisco Rivero  76 Katya Rubia  77 Ramiro Salas  78 Giovanni A Salum  79 Theodore D Satterthwaite  80 Anne Schienle  81 Elisabeth Schrammen  5 Koen R J Schruers  82 Gunter Schumann  83 Arjun Sethi  26 Tim Silk  84 Norbert Skokauskas  85 Jordan W Smoller  86 Jair C Soares  63 Lin Sørensen  87 Christina Stadler  88 Michael C Stevens  89 Benjamin Straube  46 Thomas Straube  60 Andreas Ströhle  90 Gustavo Sudre  77 Denis G Sukhodolsky  44 Kate Sully  91 Xiaoqiang Sun  53 Chad M Sylvester  92 Nicola Toschi  93 Steven J A van der Werff  94 Alasdair Vance  95 Robert Vermeiren  96 Albert Wabnegger  81 Xiaoping Wang  22 Julia Wendt  97 Sarah Whittle  98 Julian Wiemer  99 Anderson M Winkler  100 Hans U Wittchen  101 Mon-Ju Wu  63 Qiong Wu  102 Tony T Yang  103 Yunbo Yang  104 Shuqiao Yao  53 Jibiao Zhang  53 Jiansong Zhou  22 Andre Zugman  105 Giovana B Zunta-Soares  63 Peter M Zwanzger  106 Sophia I Thomopoulos  107 Neda Jahanshad  107 Paul M Thompson  107 Kevin Hilbert  108 Arielle Baskin-Sommers  109 Charlotte A M Cecil  110 Moji Aghajani  17 Daniel S Pine  105 Nic J A van der Wee  94 Dan J Stein  111 Nynke A Groenewold  112 Janna Marie Bas-Hoogendam  113 Laura K M Han  114 Elena Pozzi  98 Lianne Schmaal  98 Barbara Franke  115 Martine Hoogman  116 Esther Walton  2 Stephane A De Brito  117 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, Major Depressive Disorder, 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 (Enhancing NeuroImaging Genetics through Meta-Analysis) Consortium, we conducted a mega-analysis to identify shared and distinct cortical and subcortical brain alterations across internalizing (anxiety disorders and depression) and externalizing (attention-deficit/hyperactivity disorder [ADHD] and conduct disorder [CD]) disorders in youth.

Methods: 3D T1-weighted magnetic resonance imaging data from youths (age range 4-21 years) with anxiety disorders (n = 1044), depression (n = 504), ADHD (n = 1317), and CD (n = 1172) along with healthy control participants (n = 4743) were analyzed. We assessed group differences in regional cortical thickness, surface area (SA), and subcortical volume using linear models, adjusted for site, age, and sex, as well as total intracranial volume in the SA and subcortical volume models.

Results: We observed transdiagnostic associations, with both internalizing and externalizing disorders characterized by lower SA 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 SA and intracranial volume (ds = -0.11 to -0.25). Externalizing-specific reductions in SA were observed in frontoparietal 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 novel 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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