Executive functioning in boys with ADHD: Primarily an inhibition deficit?

Anouk Scheres, Jaap Oosterlaan, Hilde Geurts, Sharon Morein-Zamir, Nachson Meiran, Harry Schut, Laurens Vlasveld, Joseph A. Sergeant

Research output: Contribution to journalArticlepeer-review

146 Scopus citations

Abstract

This study was aimed at: (1) testing whether boys with Attention Deficit/Hyperactivity Disorder (ADHD) demonstrate a deficit in response inhibition and deficits in other executive functions (EF), or alternatively, demonstrate a deficit in only response inhibition; (2) investigating which role associated factors, such as IQ, age, and performance on non-EF tasks play in EF in ADHD; (3) studying the association between the three different forms of inhibition studied here. Boys with ADHD were compared with normal control (NC) boys on five domains of executive functioning: inhibition (inhibition of a prepotent response, inhibition of an ongoing response, and interference control), planning, set-shifting, working memory, and verbal fluency. Boys with ADHD demonstrated deficits in interference control, inhibition of an ongoing response, planning, and letter fluency. After controlling for age, IQ, and non-EF measures, none of the EF deficits in ADHD remained. Finally, correlations between different inhibition measures were generally low, and correlations within domains of inhibition were not higher than correlations between domains of inhibition. This calls into question the distinctiveness of the different forms of response inhibition.

Original languageEnglish
Pages (from-to)569-594
Number of pages26
JournalArchives of Clinical Neuropsychology
Volume19
Issue number4
DOIs
StatePublished - 1 Jan 2004

Keywords

  • AD/HD
  • ADHD
  • Executive function
  • Hyperactivity
  • Response inhibition

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Clinical Psychology
  • Psychiatry and Mental health

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