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Gepubliceerd in: Journal of Abnormal Child Psychology 7/2017

12-12-2016

Investigating the Impact of Cognitive Load and Motivation on Response Control in Relation to Delay Discounting in Children with ADHD

Auteurs: Mary K. Martinelli, Stewart H. Mostofsky, Keri S. Rosch

Gepubliceerd in: Research on Child and Adolescent Psychopathology | Uitgave 7/2017

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Abstract

Attention-deficit/hyperactivity disorder (ADHD) is characterized by deficits in impulse control across a range of behaviors, from simple actions to those involving complex decision-making (e.g., preference for smaller-sooner versus larger later rewards). This study investigated whether changes in motor response control with increased cognitive load and motivational contingencies are associated with decision-making in the form of delay discounting among 8–12 year old children with and without ADHD. Children with ADHD (n = 26; 8 girls) and typically developing controls (n = 40; 11 girls) completed a standard go/no-go (GNG) task, a GNG task with motivational contingencies, a GNG task with increased cognitive load, and two measures of delay discounting: a real-time task in which the delays and immediately consumable rewards are experienced in real-time, and a classic task involving choices about money at longer delays. Children with ADHD, particularly girls, exhibited greater delay discounting than controls during the real-time discounting task, whereas diagnostic groups did not significantly differ on the classic discounting task. The effect of cognitive load on response control was uniquely associated with greater discounting on the real-time task for children with ADHD, but not for control children. The effect of motivational contingencies on response control was not significantly associated with delay discounting for either diagnostic group. The findings from this study help to inform our understanding of the factors that influence deficient self-control in ADHD, suggesting that impairments in cognitive control may contribute to greater delay discounting in ADHD.
Voetnoten
1
After selecting for all other inclusionary criteria, only one participant met for the hyperactive/impulsive subtype of ADHD. This participant was excluded in an effort to create a more uniform sample and avoid potential diagnostic confounds.
 
2
Data for the current study was collected as a part of a larger laboratory study, which recently transitioned from using the DICA-IV to the Kiddie Schedule for Affective Disorders and Schizophrenia for School Aged Children Present Lifetime version (KSADS-PL; Kaufman et al. 2013). Among the subset of participants selected for inclusion in the present study, one had been assessed for diagnostic status using the KSADS-PL. All other participants (n = 65) were assessed using the DICA-IV.
 
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Metagegevens
Titel
Investigating the Impact of Cognitive Load and Motivation on Response Control in Relation to Delay Discounting in Children with ADHD
Auteurs
Mary K. Martinelli
Stewart H. Mostofsky
Keri S. Rosch
Publicatiedatum
12-12-2016
Uitgeverij
Springer US
Gepubliceerd in
Research on Child and Adolescent Psychopathology / Uitgave 7/2017
Print ISSN: 2730-7166
Elektronisch ISSN: 2730-7174
DOI
https://doi.org/10.1007/s10802-016-0237-6

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