White Matter Microstructure in Youths with Conduct Disorder: Effects of Sex and Variation in Callous Traits

Jack Rogers, Karen Gonzalez-Madruga, Gregor Kohls, Rosalind Baker, Roberta Clanton, Ruth Pauli, Philippa Birch, Alimul Chowdhury, Marietta Kirchner, Jesper Andersson, Areti Smaragdi, Ignazio Puzzo, Sarah Baumann, Nora Maria Raschle, Lynn Valérie Fehlbaum, Willeke Martine Menks, Martin Steppan, Christina Stadler, Kerstin Konrad, Christine FreitagGraeme Fairchild, Stephane De Brito

Research output: Contribution to journalArticle

5 Citations (Scopus)
43 Downloads (Pure)

Abstract

Objective: Studies using diffusion tensor imaging (DTI) to investigate white matter (WM) microstructure in youths with conduct disorder (CD) have reported disparate findings. We investigated WM alterations in a large sample of youths with CD, and examined the influence of sex and callous-unemotional (CU) traits. Method: DTI data were acquired from 124 youths with CD (59 female) and 174 typically developing (TD) youths (103 female) 9 to 18 years of age. Tract-based spatial statistics tested for effects of diagnosis and sex-by-diagnosis interactions. Associations with CD symptoms, CU traits, a task measuring impulsivity, and the impact of comorbidity, and age- and puberty-related effects were examined. Results: Youths with CD exhibited higher axial diffusivity in the corpus callosum and lower radial diffusivity and mean diffusivity in the anterior thalamic radiation relative to TD youths. Female and male youths with CD exhibited opposite changes in the left hemisphere within the internal capsule, fornix, posterior thalamic radiation, and uncinate fasciculus. Within the CD group, CD symptoms and callous traits exerted opposing influences on corpus callosum axial diffusivity, with callous traits identified as the unique clinical feature predicting higher axial diffusivity and lower radial diffusivity within the corpus callosum and anterior thalamic radiation, respectively. In an exploratory analysis, corpus callosum axial diffusivity partially mediated the association between callous traits and impulsive responses to emotional faces. Results were not influenced by symptoms of comorbid disorders, and no age- or puberty-related interactions were observed. Conclusion: WM alterations within the corpus callosum represent a reliable neuroimaging marker of CD. Sex and callous traits are important factors to consider when examining WM in CD.

Original languageEnglish
Pages (from-to)1184-1196
Number of pages13
JournalJournal of the American Academy of Child and Adolescent Psychiatry
Volume58
Issue number12
Early online date25 Apr 2019
DOIs
Publication statusPublished - 1 Dec 2019

Keywords

  • FemNAT-CD
  • callous-unemotional traits
  • conduct disorder
  • diffusion tensor imaging (DTI)
  • sex differences

ASJC Scopus subject areas

  • Developmental and Educational Psychology
  • Psychiatry and Mental health

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