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Validating neuropsychological subtypes of ADHD: how do children with and without an executive function deficit differ?
Author(s) -
Lambek Rikke,
Tannock Rosemary,
Dalsgaard Soeren,
Trillingsgaard Anegen,
Damm Dorte,
Thomsen Per Hove
Publication year - 2010
Publication title -
journal of child psychology and psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.652
H-Index - 211
eISSN - 1469-7610
pISSN - 0021-9630
DOI - 10.1111/j.1469-7610.2010.02248.x
Subject(s) - psychology , neuropsychology , executive functions , attention deficit hyperactivity disorder , cognition , developmental psychology , attention deficit , clinical psychology , psychiatry
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.