Working memory, response inhibition, and within-subject variability in children with attention-deficit/hyperactivity disorder or reading disorder.
This study compared children with ADHD (n = 19), reading disorder (RD; n = 17), ADHD+RD (n = 21), and control children (n = 19) on linguistic and executive function measures. We found no evidence of response inhibition problems in ADHD or RD when a baseline measure of functioning was taken into account. General working memory problems were only found in children with RD or ADHD+RD. Both children with ADHD and RD showed a highly inaccurate (more commission errors) and variable (higher within-subject standard deviation of reaction time) response style. The comorbid group made most errors, suggesting that different factors underlie the high error rate in both disorders.
Van De Voorde
Séverine
S
Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium. severine.vandevoorde@ugent.be
Roeyers
Herbert
H
Verté
Sylvie
S
Wiersema
Jan Roelf
JR
D001289:Attention Deficit Disorder with Hyperactivity / Q000150:complications*; D002648:Child; D003072:Cognition Disorders / Q000209:etiology*; D004410:Dyslexia / Q000150:complications*; D056344:Executive Function / Q000502:physiology; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D007805:Language Development Disorders; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology*; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology; D010700:Phonetics; D010775:Photic Stimulation