Cited by 112Attention Deficit Hyperactivity DisorderNeural and Behavioral Psychology StudiesDevelopmental and Educational Neuropsychology

Disentangling Deficits in Adults With Attention-Deficit/Hyperactivity Disorder

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Bekker, Evelijne M., Overtoom, Carin C.E., Kooij, J.J. Sandra, Buitelaar, Jan K., Verbaten, Marinus N., Kenemans, J. Leon·2005·Archives of General Psychiatry

Abstract

CONTEXT: A lack of inhibitory control has been suggested to be the core deficit in attention-deficit/hyperactivity disorder (ADHD), especially in adults. This means that a primary deficit in inhibition mediates a cascade of secondary deficits in other executive functions, such as attention. Impaired stopping has been claimed to support the inhibition hypothesis. However, executive functions such as inhibition and attention are hard to disentangle. OBJECTIVE: To use event-related potentials in adult patients with ADHD to show that impaired stopping is associated with abnormalities of attention. DESIGN: The stop signal task was presented to 24 adults with ADHD combined subtype and 24 controls. Stop event-related potentials are distorted by overlap from event-related potentials to other stimuli in close temporal proximity, but we applied a method (Adjar level 2) to effectively remove this overlap. RESULTS: In line with an inhibitory control deficit, the stop signal reaction time was longer in adults with ADHD (F(1,46) = 7.12, P<.01) whereas there was no significant difference for go stimulus reaction time. Overlap-free stop event-related potentials revealed smaller stop P3s in adults with ADHD (F(1,44) = 4.20, P<.05). In children with ADHD, this has been interpreted to reflect deficient inhibitory control. However, controls were also found to have larger early responses in the auditory cortex (N1) when stop signals resulted in successful stops, relative to failed stops, signifying increased attention (F(1,23) = 11.88, P<.01). This difference was completely absent in adults with ADHD. CONCLUSIONS: Disturbed attentional processing of the stop signal contributed to impaired stopping in adults with ADHD. This finding may have implications for treatment.

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Crossref · 10.1001/archpsyc.62.10.1129

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  • The amplitude of non-inhibitory attentional EEG components is also reduced in ADHD, suggesting the response-inhibition deficit may have multiple origins.

    “However, the amplitude of non-inhibitory (attentional) components in the electroencephalogram is also reduced in ADHD , which suggests that the response-inhibition deficit may have multiple origins [44].”

    From Response inhibition in the stop-signal paradigm (2008) · cites this paper as [44]

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Authors
Bekker, E. M., Overtoom, C. C. E., Kooij, J. J. S., Buitelaar, J. K., Verbaten, M. N., & Kenemans, J. L.
Affiliations
Utrecht University (NL)
Venue
Archives of General Psychiatry
Published
2005-10-01
Volume
62
Issue
10
Pages
1129
ISSN
0003-990X (ISSN-L)
OpenAlex
W2155595120
Cited by
112
References
52
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 4 · 2020: 3 · 2019: 3 · 2018: 4 · 2017: 4 · 2016: 5 · 2015: 7 · 2014: 8 · 2013: 4 · 2012: 10
FWCI
3.81
Type
journal article
Language
en
Open access
Locations
  • Archives of General Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Radboud Repository (Radboud University) (submittedVersion, other-oa)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
  • Radboud Repository (Radboud University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
Keywords
adult ADHD, attention deficit hyperactivity disorder, inhibitory control, executive function, stop-signal task, event-related potentials, P300, attentional processes
MeSH terms
Adolescent, Adult, Age Factors, Attention, Attention Deficit Disorder with Hyperactivity, Auditory Cortex, Brain Mapping, Child, Cognition Disorders, Electroencephalography, Evoked Potentials, Evoked Potentials, Auditory, Frontal Lobe, Humans, Inhibition, Psychological, Middle Aged, Neuropsychological Tests, Psychiatric Status Rating Scales, Psychomotor Performance, Reaction Time, Task Performance and Analysis

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