Global gray matter morphometry differences between children with reading disability, ADHD, and comorbid reading disability/ADHD

Audreyana C. Jagger-Rickels, Michelle Y. Kibby, Jordan M. Constance

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Extensive, yet disparate, research exists elucidating structural anomalies in individuals with Reading Disability (RD) or ADHD. Despite ADHD and RD being highly comorbid, minimal research has attempted to determine shared patterns of morphometry between these disorders. In addition, there is no published research examining the morphometry of comorbid RD and ADHD (RD/ADHD). Hence, we conducted voxel-based morphometry on the MRI scans of 106 children, ages 8–12 years, with RD, ADHD, or RD/ADHD, and typically developing controls. We found right caudate and superior frontal regions in both RD and ADHD, along with areas specific to RD and to ADHD that are consistent with current theories on these disorders. Perhaps most importantly, we found a potential neurobiological substrate for RD/ADHD. Further, our findings illustrate both shared and specific contributors to RD/ADHD, supporting two current theories on the comorbidity of RD and ADHD, thereby facilitating future work on potential etiologies of RD/ADHD.

Original languageEnglish (US)
Pages (from-to)54-66
Number of pages13
JournalBrain and language
Volume185
DOIs
StatePublished - Oct 2018
Externally publishedYes

Keywords

  • ADHD
  • Frontal lobes
  • Morphometry
  • Occipital lobes
  • Reading disability
  • Reading disability/ADHD
  • Striatum
  • Structural neuroimaging
  • Thalamus
  • VBM

ASJC Scopus subject areas

  • Language and Linguistics
  • Experimental and Cognitive Psychology
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing

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