Cited by 33Attention Deficit Hyperactivity DisorderDevelopmental and Educational NeuropsychologyNeural and Behavioral Psychology Studies

Working memory and behavioral inhibition in boys with ADHD: An experimental examination of competing models

Alderson, R. Matt, Patros, Connor H. G., Tarle, Stephanie J., Hudec, Kristen L., Kasper, Lisa J., Lea, Sarah E.·2017·Child Neuropsychology

Abstract

Working memory (WM) and behavioral inhibition impairments have garnered significant attention as candidate core features, endophenotypes, and/or associated neurocognitive deficits of attention-deficit/hyperactivity disorder (ADHD). The relationship between ADHD-related WM and inhibition deficits remains relatively unclear, however, with inferences about the constructs' directional relationship stemming predominantly from correlational research. The current study utilized a dual-task paradigm to experimentally examine the relationship between ADHD-related WM and behavioral inhibition deficits. A total of 31 boys (15 ADHD and 16 typically developing [TD]) aged 8-12 years completed WM (1-back and 2-back), behavioral inhibition (stop-signal task [SST]), and dual-condition (1-back/SST and 2-back/SST) experimental tasks. Children with ADHD exhibited significant, large-magnitude WM deficits for the 1-back condition but were not significantly different from children in the TD group for the 2-back, 1-back/SST, and 2-back/SST conditions. Children with ADHD also exhibited significant inhibition deficits for the SST, 1-back/SST, and 2-back/SST conditions, but the within-group effect was not significant. The findings suggest that ADHD-related stop-signal demands are upstream, or compete for, resources involved in controlled-focused attention and/or other central executive (CE), WM processes.

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Crossref · 10.1080/09297049.2015.1105207

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  • The high working memory condition (2-back) in Alderson et al. was too difficult for all children, which may limit conclusions regarding working memory's impact on inhibitory control functioning.

    “Further, despite the elegant experimental design, Alderson et al. (30) pointed out that their high working memory condition (2-back) was simply too difficult for all children (i.e., performance at/below chance levels).”
  • Increasing inhibition demands disrupted n-back memory performance for children with and without ADHD, whereas increasing n-back memory load failed to affect inhibition processes.

    “They found that increasing inhibition demands disrupted n-back memory performance for children with and without ADHD, whereas increasing n-back memory load failed to affect inhibition processes (30).”
  • The only other experiment to manipulate both working memory and inhibitory control in ADHD found that depleting inhibition resources using a stop-signal paradigm produced significant reductions in n-back accuracy for children with and without ADHD.

    “In contrast, at first glance these findings appear to contradict the only other (to our knowledge) experiment to manipulate both working memory and inhibitory control in ADHD, which found that depleting inhibition resources using a stop-signal paradigm produced significant reductions in n-back accuracy for children with and without ADHD (30).”

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Authors
Alderson, R. M., Patros, C. H. G., Tarle, S. J., Hudec, K. L., Kasper, L. J., & Lea, S. E.
Affiliations
Oklahoma State University (US)
Corresponding author
Alderson, R. Matt
Venue
Child Neuropsychology
Published
2015-11-13
Volume
23
Issue
3
Pages
255-272
ISSN
  • 0929-7049 (ISSN-L)
  • 1744-4136
OpenAlex
W2179770161
Cited by
33
References
52
Citations by year
2026: 1 · 2025: 2 · 2024: 5 · 2023: 6 · 2022: 5 · 2020: 4 · 2019: 3 · 2018: 2 · 2017: 4 · 2016: 1
FWCI
1.90
Type
journal article
Language
en
Open access
closed
Locations
  • Child Neuropsychology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Oklahoma Center for the Advancement of Science & Technology (HR11-034)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
attention deficit hyperactivity disorder, working memory, behavioral inhibition, stop-signal task, dual-task performance, central executive, endophenotypes, boys
MeSH terms
Attention Deficit Disorder with Hyperactivity, Child, Humans, Male, Memory, Short-Term, Social Behavior, Executive Function

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