Conflict of interest statement: No conflicts declared.
Validating neuropsychological subtypes of ADHD: how do children with and without an executive function deficit differ?
Article first published online: 12 APR 2010
© 2010 The Authors. Journal compilation © 2010 Association for Child and Adolescent Mental Health
Journal of Child Psychology and Psychiatry
Volume 51, Issue 8, pages 895–904, August 2010
How to Cite
Lambek, R., Tannock, R., Dalsgaard, S., Trillingsgaard, A., Damm, D. and Thomsen, P. H. (2010), Validating neuropsychological subtypes of ADHD: how do children with and without an executive function deficit differ?. Journal of Child Psychology and Psychiatry, 51: 895–904. doi: 10.1111/j.1469-7610.2010.02248.x
- Issue published online: 9 JUL 2010
- Article first published online: 12 APR 2010
- Manuscript accepted 3 February 2010
- executive function deficit;
- delay aversion;
- affective decision-making;
- multiple pathway models
Objective: The study investigates behavioural, academic, cognitive, and motivational aspects of functioning in school-age children with attention-deficit/hyperactivity disorder (ADHD) with and without an executive function deficit (EFD).
Method: Children with ADHD – EFD (n = 22) and children with ADHD + EFD (n = 26) were compared on aspects of ADHD behaviour, school functioning, general cognitive ability, intra-individual response variability, affective decision-making, and delay aversion.
Results: Children with ADHD – EFD and children with ADHD + EFD were comparable in terms of ADHD symptomatology and school functioning. However, children with ADHD + EFD had significantly lower IQ and more intra-individual response variability than no EFD counterparts. Children with ADHD alone appeared more delay averse on the C-DT task than children with ADHD + EFD.
Conclusions: Some children with ADHD were primarily characterised by problems with executive functions and variability others by problems with delay aversion supporting multiple pathway models of ADHD. Given the exploratory nature of the study, results are in need of replication.