ADHD and delay aversion: the influence of non-temporal stimulation on choice for delayed rewards / Inge ANTROP in Journal of Child Psychology and Psychiatry, 47-11 (November 2006)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 47-11 (November 2006) . - p.1152–1158 Titre : ADHD and delay aversion: the influence of non-temporal stimulation on choice for delayed rewards Type de document : Texte imprimé et/ou numérique Auteurs : Inge ANTROP, Auteur ; Herbert ROEYERS, Auteur ; Dieter BAEYENS, Auteur ; Pieter STOCK, Auteur ; Sylvie VERTE, Auteur ; Jan R. WIERSEMA, Auteur Année de publication : 2007 Article en page(s) : p.1152–1158 Langues : Anglais (eng) Mots-clés : Delay-aversion Index. décimale : PER Périodiques Résumé : Background: Delay aversion, the motivation to escape or avoid delay, results in preference for small immediate over large delayed rewards. Delay aversion has been proposed as one distinctive psychological process that may underlie the behavioural symptoms and cognitive deficits of attention deficit/hyperactivity disorder (ADHD). Furthermore, the delay aversion hypothesis predicts that ADHD children's preference for immediate small over large delayed rewards will be reduced when stimulation, which makes time appear to pass more quickly, is added to the delay interval. The current paper tests these predictions. Methods: A group of children with a diagnosis of ADHD (with or without oppositional defiant disorder (ODD)), a group with a diagnosis of high-functioning autism (HFA), and a normal control group were compared on an experimental paradigm giving repeated choices between small immediate and large delayed rewards (Maudsley Index of Delay Aversion–MIDA) under two conditions (stimulation and no stimulation). Results: As predicted, ADHD children displayed a stronger preference than the HFA and control children for the small immediate rewards under the no-stimulation condition. The ADHD children preferences were normalised under the stimulation condition with no differences between the groups. This pattern of results was the same whether the ADHD children had comorbid ODD or not. Discussion: The findings from the MIDA are consistent with the delay aversion hypothesis of ADHD in showing that preference for small immediate rewards over large delayed rewards is a specific feature of ADHD and that this preference can be reduced by the addition of stimulation. Further research is required to better understand the emotional and motivational mechanisms underpinning delay aversion. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2006.01619.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=805 [article] ADHD and delay aversion: the influence of non-temporal stimulation on choice for delayed rewards [Texte imprimé et/ou numérique] / Inge ANTROP, Auteur ; Herbert ROEYERS, Auteur ; Dieter BAEYENS, Auteur ; Pieter STOCK, Auteur ; Sylvie VERTE, Auteur ; Jan R. WIERSEMA, Auteur . - 2007 . - p.1152–1158. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 47-11 (November 2006) . - p.1152–1158 Mots-clés : Delay-aversion Index. décimale : PER Périodiques Résumé : Background: Delay aversion, the motivation to escape or avoid delay, results in preference for small immediate over large delayed rewards. Delay aversion has been proposed as one distinctive psychological process that may underlie the behavioural symptoms and cognitive deficits of attention deficit/hyperactivity disorder (ADHD). Furthermore, the delay aversion hypothesis predicts that ADHD children's preference for immediate small over large delayed rewards will be reduced when stimulation, which makes time appear to pass more quickly, is added to the delay interval. The current paper tests these predictions. Methods: A group of children with a diagnosis of ADHD (with or without oppositional defiant disorder (ODD)), a group with a diagnosis of high-functioning autism (HFA), and a normal control group were compared on an experimental paradigm giving repeated choices between small immediate and large delayed rewards (Maudsley Index of Delay Aversion–MIDA) under two conditions (stimulation and no stimulation). Results: As predicted, ADHD children displayed a stronger preference than the HFA and control children for the small immediate rewards under the no-stimulation condition. The ADHD children preferences were normalised under the stimulation condition with no differences between the groups. This pattern of results was the same whether the ADHD children had comorbid ODD or not. Discussion: The findings from the MIDA are consistent with the delay aversion hypothesis of ADHD in showing that preference for small immediate rewards over large delayed rewards is a specific feature of ADHD and that this preference can be reduced by the addition of stimulation. Further research is required to better understand the emotional and motivational mechanisms underpinning delay aversion. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2006.01619.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=805

Common alterations in sensitivity to type but not amount of reward in ADHD and autism spectrum disorders / Ellen DEMURIE in Journal of Child Psychology and Psychiatry, 52-11 (November 2011)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 52-11 (November 2011) . - p.1164-1173 Titre : Common alterations in sensitivity to type but not amount of reward in ADHD and autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Ellen DEMURIE, Auteur ; Herbert ROEYERS, Auteur ; Dieter BAEYENS, Auteur ; Edmund J. S. SONUGA-BARKE, Auteur Année de publication : 2011 Article en page(s) : p.1164-1173 Langues : Anglais (eng) Mots-clés : ADHD  ASD  reward sensitivity  monetary reward  social reward Index. décimale : PER Périodiques Résumé : Background:  Children with attention deficit/hyperactivity disorder (ADHD) display abnormalities in reward processing. Most reward studies have focused on the effects of material or monetary rewards. Studies with autism spectrum disorder (ASD) have focused on social rewards. In this study we compared the effects of amount and type of reward in children with ADHD and those with ASD. Methods:  Two adapted versions of the Monetary Incentive Delay Task were used to study the effects of monetary and social reward anticipation on performance in 40 typically developing (TD) children and adolescents (8–16y), 35 children and adolescents with ADHD and 31 children and adolescents with ASD. Results:  Monetary and social reward improved accuracy and response time (RT) in all groups. The higher the anticipated reward, the more accurate and faster were responses. Independent of these effects, there was a differential effect of reward type. Both clinical groups, but not TD, responded faster for monetary than social rewards. Conclusions:  The results, while not supporting hyposensitivity to changes in reward amount in ADHD and ASD, do suggest that both groups are generally less motivated in settings where social as opposed to monetary rewards can be earned. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2010.02374.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=145 [article] Common alterations in sensitivity to type but not amount of reward in ADHD and autism spectrum disorders [Texte imprimé et/ou numérique] / Ellen DEMURIE, Auteur ; Herbert ROEYERS, Auteur ; Dieter BAEYENS, Auteur ; Edmund J. S. SONUGA-BARKE, Auteur . - 2011 . - p.1164-1173. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 52-11 (November 2011) . - p.1164-1173 Mots-clés : ADHD  ASD  reward sensitivity  monetary reward  social reward Index. décimale : PER Périodiques Résumé : Background:  Children with attention deficit/hyperactivity disorder (ADHD) display abnormalities in reward processing. Most reward studies have focused on the effects of material or monetary rewards. Studies with autism spectrum disorder (ASD) have focused on social rewards. In this study we compared the effects of amount and type of reward in children with ADHD and those with ASD. Methods:  Two adapted versions of the Monetary Incentive Delay Task were used to study the effects of monetary and social reward anticipation on performance in 40 typically developing (TD) children and adolescents (8–16y), 35 children and adolescents with ADHD and 31 children and adolescents with ASD. Results:  Monetary and social reward improved accuracy and response time (RT) in all groups. The higher the anticipated reward, the more accurate and faster were responses. Independent of these effects, there was a differential effect of reward type. Both clinical groups, but not TD, responded faster for monetary than social rewards. Conclusions:  The results, while not supporting hyposensitivity to changes in reward amount in ADHD and ASD, do suggest that both groups are generally less motivated in settings where social as opposed to monetary rewards can be earned. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2010.02374.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=145

Event rate and event-related potentials in ADHD / Jan R. WIERSEMA in Journal of Child Psychology and Psychiatry, 47-6 (June 2006)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 47-6 (June 2006) . - p.560–567 Titre : Event rate and event-related potentials in ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Jan R. WIERSEMA, Auteur ; Herbert ROEYERS, Auteur ; Jaap VAN DER MEERE, Auteur ; Rudy VAN COSTER, Auteur ; Dieter BAEYENS, Auteur Année de publication : 2006 Article en page(s) : p.560–567 Langues : Anglais (eng) Mots-clés : ADHD ODD/CD ERP event-rate effort state-regulation Index. décimale : PER Périodiques Résumé : Background: It has been repeatedly found that performance of children with attention deficit hyperactivity disorder (ADHD) is more impaired when a long inter-stimulus interval (ISI) is used than when a short ISI is used. According to the cognitive-energetic model, this may reflect difficulty in remaining in an optimal motor activation state because of insufficient effort allocation. Method: Event-related potentials (ERPs) were evaluated during a Go/No-Go task that incorporates a condition with a fast and a slow presentation rate. Results: ADHD, whether or not comorbid with oppositional defiant/conduct disorder (ODD/CD), was associated with a steeper increase in reaction time (RT) from the fast to the slow condition accompanied by a missing increment of the parietal P3. Speed of responding was found to be correlated with P3 amplitude. In the fast condition, children with ADHD made more errors of commission, accompanied by a smaller No-Go N2, a component thought to be related to inhibition; however, after controlling for ODD/CD these differences disappeared. Conclusions: The association between the steeper increase in RT and reduced parietal P3s may indicate that the children with ADHD did not allocate enough extra effort to adjust to a potentially under-activated state. However, the event rate effects could not account for all of the differences between groups and also early automatic information processing stages seem disturbed in this disorder as indexed by larger P2 amplitudes. Alternative explanations are discussed. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2005.01592.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=740 [article] Event rate and event-related potentials in ADHD [Texte imprimé et/ou numérique] / Jan R. WIERSEMA, Auteur ; Herbert ROEYERS, Auteur ; Jaap VAN DER MEERE, Auteur ; Rudy VAN COSTER, Auteur ; Dieter BAEYENS, Auteur . - 2006 . - p.560–567. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 47-6 (June 2006) . - p.560–567 Mots-clés : ADHD ODD/CD ERP event-rate effort state-regulation Index. décimale : PER Périodiques Résumé : Background: It has been repeatedly found that performance of children with attention deficit hyperactivity disorder (ADHD) is more impaired when a long inter-stimulus interval (ISI) is used than when a short ISI is used. According to the cognitive-energetic model, this may reflect difficulty in remaining in an optimal motor activation state because of insufficient effort allocation. Method: Event-related potentials (ERPs) were evaluated during a Go/No-Go task that incorporates a condition with a fast and a slow presentation rate. Results: ADHD, whether or not comorbid with oppositional defiant/conduct disorder (ODD/CD), was associated with a steeper increase in reaction time (RT) from the fast to the slow condition accompanied by a missing increment of the parietal P3. Speed of responding was found to be correlated with P3 amplitude. In the fast condition, children with ADHD made more errors of commission, accompanied by a smaller No-Go N2, a component thought to be related to inhibition; however, after controlling for ODD/CD these differences disappeared. Conclusions: The association between the steeper increase in RT and reduced parietal P3s may indicate that the children with ADHD did not allocate enough extra effort to adjust to a potentially under-activated state. However, the event rate effects could not account for all of the differences between groups and also early automatic information processing stages seem disturbed in this disorder as indexed by larger P2 amplitudes. Alternative explanations are discussed. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2005.01592.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=740

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