TY - JOUR
T1 - Differential effect of reading training on functional connectivity in children with reading difficulties with and without ADHD comorbidity
AU - Horowitz-Kraus, Tzipi
AU - Hershey, Alexander
AU - Kay, Benjamin
AU - DiFrancesco, Mark
N1 - Funding Information:
This work was supported by the National Institutes of Health Eunice Kennedy Shriver National Institute of Child Health and Human Development ( R01 HD086011 ; PI: Horowitz-Kraus).
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2019/2
Y1 - 2019/2
N2 - A comorbidity of attention deficit hyperactivity disorder (ADHD) with reading difficulties (RD) is common in children. However, children with ADHD + RD have a different reading and executive functions (EF) profile than children with RD alone. We compared the effect of an EF-based intervention on neural circuits related to EF in children with RD and those with ADHD + RD. Functional connectivity MRI data from a lexical decision task suggest that the RD-alone group showed greater improvement in EF and reading tests and greater functional connectivity between networks related to both higher- and lower-level visual processing and those related to ventral attention and dorsal attention, as well as semantic processing. Children with ADHD + RD showed greater connectivity between networks related to attention and dorsal attention and those related to visual processing and EF. Results are consistent with the Cognitive Subtype hypothesis and suggest that RD and ADHD + RD, although related behaviourally, are distinct disorders with regard to network response and connectivity during reading and after an EF-based intervention.
AB - A comorbidity of attention deficit hyperactivity disorder (ADHD) with reading difficulties (RD) is common in children. However, children with ADHD + RD have a different reading and executive functions (EF) profile than children with RD alone. We compared the effect of an EF-based intervention on neural circuits related to EF in children with RD and those with ADHD + RD. Functional connectivity MRI data from a lexical decision task suggest that the RD-alone group showed greater improvement in EF and reading tests and greater functional connectivity between networks related to both higher- and lower-level visual processing and those related to ventral attention and dorsal attention, as well as semantic processing. Children with ADHD + RD showed greater connectivity between networks related to attention and dorsal attention and those related to visual processing and EF. Results are consistent with the Cognitive Subtype hypothesis and suggest that RD and ADHD + RD, although related behaviourally, are distinct disorders with regard to network response and connectivity during reading and after an EF-based intervention.
KW - Attention deficit hyperactivity disorder
KW - Executive functions
KW - Functional connectivity
KW - MRI
KW - Reading
KW - Reading difficulties
UR - http://www.scopus.com/inward/record.url?scp=85054240246&partnerID=8YFLogxK
U2 - 10.1016/j.jneuroling.2018.09.002
DO - 10.1016/j.jneuroling.2018.09.002
M3 - Article
AN - SCOPUS:85054240246
SN - 0911-6044
VL - 49
SP - 93
EP - 108
JO - Journal of Neurolinguistics
JF - Journal of Neurolinguistics
ER -