Carter Leno, Virginia, Chandler, Susie, White, Pippa, Pickles, Andrew, Baird, Gillian, Hobson, Chris, Smith, Anna B., Charman, Tony, Rubia, Katya and Simonoff, Emily
2018.
Testing the specificity of executive functioning impairments in adolescents with ADHD, ODD/CD and ASD.
European Child and Adolescent Psychiatry
27
(7)
, pp. 899-908.
10.1007/s00787-017-1089-5
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Abstract
Current diagnostic systems conceptualise attention deficit hyperactivity disorder (ADHD), oppositional defiant/conduct disorder (ODD/CD) and autism spectrum disorder (ASD) as separate diagnoses. However, all three demonstrate executive functioning (EF) impairments. Whether these impairments are trans-diagnostic or disorder-specific remains relatively unexplored. Four groups of 10–16 year-olds [typically developing (TD; N = 43), individuals clinically diagnosed with ADHD (N = 21), ODD/CD (N = 26) and ASD (N = 41)] completed Go/NoGo and Switch tasks. Group differences were tested using analysis of co-variance (ANCOVA) including age, IQ, sex, conduct problems and ADHD symptoms as co-variates. Results indicated some disorder-specificity as only the ASD group demonstrated decreased probability of inhibition in the Go/NoGo task compared to all other groups. However, shared impairments were also found; all three diagnostic groups demonstrated increased reaction time variability (RTV) compared to the TD group, and both the ODD/CD and the ASD group demonstrated increased premature responses. When controlling for ADHD symptoms and conduct problems, group differences in RTV were no longer significant; however, the ASD group continued to demonstrate increased premature responses. No group differences were found in cognitive flexibility in the Switch task. A more varied response style was present across all clinical groups, although this appeared to be accounted for by sub-threshold ODD/CD and ADHD symptoms. Only the ASD group was impaired in response inhibition and premature responsiveness relative to TD adolescents. The findings suggest that some EF impairments typically associated with ADHD may also be found in individuals with ASD.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Psychology |
Additional Information: | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
Publisher: | Springer Verlag |
ISSN: | 1018-8827 |
Date of First Compliant Deposit: | 8 December 2020 |
Date of Acceptance: | 23 November 2017 |
Last Modified: | 05 May 2023 02:06 |
URI: | https://orca.cardiff.ac.uk/id/eprint/136726 |
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