Heart rate and reinforcement sensitivity in ADHD / Marjolein LUMAN in Journal of Child Psychology and Psychiatry, 48-9 (September 2007)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 48-9 (September 2007) . - p.890–898 Titre : Heart rate and reinforcement sensitivity in ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Marjolein LUMAN, Auteur ; Joseph A. SERGEANT, Auteur ; Jaap OOSTERLAAN, Auteur ; Christopher HYDE, Auteur ; Catharina S. VAN MEEL, Auteur Année de publication : 2007 Article en page(s) : p.890–898 Langues : Anglais (eng) Mots-clés : ADHD reinforcement feedback motivation task-engagement heart-rate Index. décimale : PER Périodiques Résumé : Background: Both theoretical and clinical accounts of attention-deficit/hyperactivity disorder (ADHD) implicate a dysfunctional reinforcement system. This study investigated heart rate parameters in response to feedback associated with reward and response cost in ADHD children and controls aged 8 to 12. Methods: Heart rate responses (HRRs) following feedback and heart rate variability (HRV) in the low frequency band (.04–.08 Hz), a measure of mental effort, were calculated during a time production paradigm. Performance was coupled to monetary gain, loss or feedback-only in a cross-over design. Results: Children with ADHD exhibited smaller HRRs to feedback compared to controls. HRV of children with ADHD decreased when performance was coupled to reward or response cost compared to feedback-only. HRV of controls was similar across conditions. Conclusions: Children with ADHD were characterised by (a) possible abnormalities in feedback monitoring and (b) motivational deficits, when no external reinforcement is present. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2007.01769.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=163 [article] Heart rate and reinforcement sensitivity in ADHD [Texte imprimé et/ou numérique] / Marjolein LUMAN, Auteur ; Joseph A. SERGEANT, Auteur ; Jaap OOSTERLAAN, Auteur ; Christopher HYDE, Auteur ; Catharina S. VAN MEEL, Auteur . - 2007 . - p.890–898. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 48-9 (September 2007) . - p.890–898 Mots-clés : ADHD reinforcement feedback motivation task-engagement heart-rate Index. décimale : PER Périodiques Résumé : Background: Both theoretical and clinical accounts of attention-deficit/hyperactivity disorder (ADHD) implicate a dysfunctional reinforcement system. This study investigated heart rate parameters in response to feedback associated with reward and response cost in ADHD children and controls aged 8 to 12. Methods: Heart rate responses (HRRs) following feedback and heart rate variability (HRV) in the low frequency band (.04–.08 Hz), a measure of mental effort, were calculated during a time production paradigm. Performance was coupled to monetary gain, loss or feedback-only in a cross-over design. Results: Children with ADHD exhibited smaller HRRs to feedback compared to controls. HRV of children with ADHD decreased when performance was coupled to reward or response cost compared to feedback-only. HRV of controls was similar across conditions. Conclusions: Children with ADHD were characterised by (a) possible abnormalities in feedback monitoring and (b) motivational deficits, when no external reinforcement is present. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2007.01769.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=163

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