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