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Intellectual deficits in children with ADHD beyond central executive and non-executive functions.
Arch Clin Neuropsychol. 2009 Dec; 24(8):769-82.AC

Abstract

This study aimed to specify the deficit in intellectual ability in children with attention deficit hyperactivity disorder (ADHD), by studying the mediating role of impairments in central executive function (EF)-related components (working memory, inhibition, sustained attention) and non-EFs (short-term memory and processing speed). Two hundred and thirty children aged 8-11 years from a population-based sample were assigned to either the ADHD group, the clinical comparison group, or the normal comparison group. The results showed that children with ADHD had poorer fluid and crystallized intelligence, relative to both comparison groups. Further, regarding fluid intelligence, these deficits were not fully mediated by, but rather went beyond, poorer functioning on the studied EF-related components and non-EFs. We tentatively interpret these fluid deficits in children with ADHD as representing deficiencies in a general intellectual resource reflecting executive attentional processes. Concerning crystallized ability, in contrast, the deficit signified impairment in the studied cognitive functions, as indicated by the significant full mediation effect.

Authors+Show Affiliations

Department of Psychology, Uppsala University, Uppsala, Sweden. carin.tillman@psyk.uu.seNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19825866

Citation

Tillman, Carin M., et al. "Intellectual Deficits in Children With ADHD Beyond Central Executive and Non-executive Functions." Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists, vol. 24, no. 8, 2009, pp. 769-82.
Tillman CM, Bohlin G, Sørensen L, et al. Intellectual deficits in children with ADHD beyond central executive and non-executive functions. Arch Clin Neuropsychol. 2009;24(8):769-82.
Tillman, C. M., Bohlin, G., Sørensen, L., & Lundervold, A. J. (2009). Intellectual deficits in children with ADHD beyond central executive and non-executive functions. Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists, 24(8), 769-82. https://doi.org/10.1093/arclin/acp075
Tillman CM, et al. Intellectual Deficits in Children With ADHD Beyond Central Executive and Non-executive Functions. Arch Clin Neuropsychol. 2009;24(8):769-82. PubMed PMID: 19825866.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intellectual deficits in children with ADHD beyond central executive and non-executive functions. AU - Tillman,Carin M, AU - Bohlin,Gunilla, AU - Sørensen,Lin, AU - Lundervold,Astri J, Y1 - 2009/10/13/ PY - 2009/10/15/entrez PY - 2009/10/15/pubmed PY - 2009/12/16/medline SP - 769 EP - 82 JF - Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists JO - Arch Clin Neuropsychol VL - 24 IS - 8 N2 - This study aimed to specify the deficit in intellectual ability in children with attention deficit hyperactivity disorder (ADHD), by studying the mediating role of impairments in central executive function (EF)-related components (working memory, inhibition, sustained attention) and non-EFs (short-term memory and processing speed). Two hundred and thirty children aged 8-11 years from a population-based sample were assigned to either the ADHD group, the clinical comparison group, or the normal comparison group. The results showed that children with ADHD had poorer fluid and crystallized intelligence, relative to both comparison groups. Further, regarding fluid intelligence, these deficits were not fully mediated by, but rather went beyond, poorer functioning on the studied EF-related components and non-EFs. We tentatively interpret these fluid deficits in children with ADHD as representing deficiencies in a general intellectual resource reflecting executive attentional processes. Concerning crystallized ability, in contrast, the deficit signified impairment in the studied cognitive functions, as indicated by the significant full mediation effect. SN - 1873-5843 UR - https://www.unboundmedicine.com/medline/citation/19825866/Intellectual_deficits_in_children_with_ADHD_beyond_central_executive_and_non_executive_functions_ L2 - https://academic.oup.com/acn/article-lookup/doi/10.1093/arclin/acp075 DB - PRIME DP - Unbound Medicine ER -