Response inhibition in children with DSM-IV subtypes of AD/HD and related disruptive disorders: The role of reward
Publication year
2001Source
Child Neuropsychology, 7, 3, (2001), pp. 172-189ISSN
Publication type
Article / Letter to editor
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Organization
SW OZ BSI ON
Journal title
Child Neuropsychology
Volume
vol. 7
Issue
iss. 3
Page start
p. 172
Page end
p. 189
Subject
Social DevelopmentAbstract
The current study had four aims: (a) to replicate previous findings of slow response inhibition in Attention Deficit/Hyperactivity Disorder (AD/HD), (b) to explore whether poor response inhibition in children with AD/HD is a core problem or rather a result of an underlying problem related to reward, (c) to investigate the specificity of poor response inhibition and the role of reward in relation to AD/HD, and (d) to study whether findings would be different for three subtypes of AD/HD. In order to address these issues, a stop paradigm was administered under a reward condition and under a nonreward condition to an AD/HD group (n = 24), an Oppositional Defiant Disorder (ODD)/Conduct Disorder (CD) group (n = 21), a comorbid AD/HD + ODD/CD group (n = 27), and a normal control (NC) group (n = 41). Firstly, contrary to prediction, none of the Disruptive Behavior Disorder (DBD) groups differed from the NC group with respect to the speed of the inhibition process. Secondly, it was shown that children with AD/HD and children with comorbid AD/HD + ODD/CD, but not children with ODD/CD alone, slowed down more dramatically in the reward condition than normal controls. This finding was interpreted as a strategy to increase the chance of being rewarded in children with AD/HD and children with comorbid AD/HD + ODD/CD, but not in children with pure ODD/CD. Finally, analysis of AD/HD subtypes did not change the main findings of this study.
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