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Auteur Penelope ANDREOU
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Performance variability, impulsivity errors and the impact of incentives as gender-independent endophenotypes for ADHD / Henrik UEBEL in Journal of Child Psychology and Psychiatry, 51-2 (February 2010)
[article]
Titre : Performance variability, impulsivity errors and the impact of incentives as gender-independent endophenotypes for ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Henrik UEBEL, Auteur ; Aribert ROTHENBERGER, Auteur ; Hanna CHRISTIANSEN, Auteur ; Rafaela MARCO, Auteur ; Iris MANOR, Auteur ; Ana MIRANDA, Auteur ; Norbert A. BORGER, Auteur ; Alexander HEISE, Auteur ; Ulrike SCHAFER, Auteur ; Robert D. OADES, Auteur ; Louise BUTLER, Auteur ; Aisling MULLIGAN, Auteur ; Wai CHEN, Auteur ; Jonna KUNTSI, Auteur ; Philip ASHERSON, Auteur ; Stephen V. FARAONE, Auteur ; Björn ALBRECHT, Auteur ; Tobias BANASCHEWSKI, Auteur ; Jaap VAN DER MEERE, Auteur ; Penelope ANDREOU, Auteur Année de publication : 2010 Article en page(s) : p.210-218 Langues : Anglais (eng) Mots-clés : Attention-deficit-hyperactivity-disorder ADHD endophenotype executive-function reaction-time-variability false-alarms state-regulation incentives Index. décimale : PER Périodiques Résumé : Background: Attention-deficit hyperactivity disorder (ADHD) is one of the most common and highly heritable child psychiatric disorders. There is strong evidence that children with ADHD show slower and more variable responses in tasks such as Go/Nogo tapping aspects of executive functions like sustained attention and response control which may be modulated by motivational factors and/or state-regulation processes. The aim of this study was (1) to determine if these executive functions may constitute an endophenotype for ADHD; (2) to investigate for the first time whether known modulators of these executive functions may also be familial; and (3) to explore whether gender has an impact on these measures.
Methods: Two hundred and five children with ADHD combined type, 173 nonaffected biological siblings and 53 controls with no known family history of ADHD were examined using a Go/Nogo task in the framework of a multi-centre study. Performance-measures and modulating effects of event-rate and incentives were examined. Shared familial effects on these measures were assessed, and the influence of gender was tested.
Results: Children with ADHD responded more slowly and variably than nonaffected siblings or controls. Nonaffected siblings showed intermediate scores for reaction-time variability, false alarms and omission errors under fast and slow event-rates. A slower event-rate did not lead to reduced performance specific to ADHD. In the incentive condition, mean reaction-times speeded up and became less variable only in children with ADHD and their nonaffected siblings, while accuracy was improved in all groups. Males responded faster, but also committed more false alarms. There were no interactions of group by gender.
Conclusions: Reaction-time variability and accuracy parameters could be useful neuropsychological endophenotypes for ADHD. Performance-modulating effects of incentives suggested a familially driven motivational dysfunction which may play an important role on etiologic pathways and treatment approaches for ADHD. The effects of gender were independent of familial effects or ADHD-status, which in turn suggests that the proposed endophenotypes are independent of gender.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2009.02139.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=941
in Journal of Child Psychology and Psychiatry > 51-2 (February 2010) . - p.210-218[article] Performance variability, impulsivity errors and the impact of incentives as gender-independent endophenotypes for ADHD [Texte imprimé et/ou numérique] / Henrik UEBEL, Auteur ; Aribert ROTHENBERGER, Auteur ; Hanna CHRISTIANSEN, Auteur ; Rafaela MARCO, Auteur ; Iris MANOR, Auteur ; Ana MIRANDA, Auteur ; Norbert A. BORGER, Auteur ; Alexander HEISE, Auteur ; Ulrike SCHAFER, Auteur ; Robert D. OADES, Auteur ; Louise BUTLER, Auteur ; Aisling MULLIGAN, Auteur ; Wai CHEN, Auteur ; Jonna KUNTSI, Auteur ; Philip ASHERSON, Auteur ; Stephen V. FARAONE, Auteur ; Björn ALBRECHT, Auteur ; Tobias BANASCHEWSKI, Auteur ; Jaap VAN DER MEERE, Auteur ; Penelope ANDREOU, Auteur . - 2010 . - p.210-218.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 51-2 (February 2010) . - p.210-218
Mots-clés : Attention-deficit-hyperactivity-disorder ADHD endophenotype executive-function reaction-time-variability false-alarms state-regulation incentives Index. décimale : PER Périodiques Résumé : Background: Attention-deficit hyperactivity disorder (ADHD) is one of the most common and highly heritable child psychiatric disorders. There is strong evidence that children with ADHD show slower and more variable responses in tasks such as Go/Nogo tapping aspects of executive functions like sustained attention and response control which may be modulated by motivational factors and/or state-regulation processes. The aim of this study was (1) to determine if these executive functions may constitute an endophenotype for ADHD; (2) to investigate for the first time whether known modulators of these executive functions may also be familial; and (3) to explore whether gender has an impact on these measures.
Methods: Two hundred and five children with ADHD combined type, 173 nonaffected biological siblings and 53 controls with no known family history of ADHD were examined using a Go/Nogo task in the framework of a multi-centre study. Performance-measures and modulating effects of event-rate and incentives were examined. Shared familial effects on these measures were assessed, and the influence of gender was tested.
Results: Children with ADHD responded more slowly and variably than nonaffected siblings or controls. Nonaffected siblings showed intermediate scores for reaction-time variability, false alarms and omission errors under fast and slow event-rates. A slower event-rate did not lead to reduced performance specific to ADHD. In the incentive condition, mean reaction-times speeded up and became less variable only in children with ADHD and their nonaffected siblings, while accuracy was improved in all groups. Males responded faster, but also committed more false alarms. There were no interactions of group by gender.
Conclusions: Reaction-time variability and accuracy parameters could be useful neuropsychological endophenotypes for ADHD. Performance-modulating effects of incentives suggested a familially driven motivational dysfunction which may play an important role on etiologic pathways and treatment approaches for ADHD. The effects of gender were independent of familial effects or ADHD-status, which in turn suggests that the proposed endophenotypes are independent of gender.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2009.02139.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=941 A prospective longitudinal study of children’s theory of mind and adolescent involvement in bullying / Sania SHAKOOR in Journal of Child Psychology and Psychiatry, 53-3 (March 2012)
[article]
Titre : A prospective longitudinal study of children’s theory of mind and adolescent involvement in bullying Type de document : Texte imprimé et/ou numérique Auteurs : Sania SHAKOOR, Auteur ; Sara R. JAFFEE, Auteur ; Lucy BOWES, Auteur ; Isabelle OUELLET-MORIN, Auteur ; Penelope ANDREOU, Auteur ; Francesca HAPPE, Auteur ; Terrie E. MOFFITT, Auteur ; Louise ARSENEAULT, Auteur Année de publication : 2012 Article en page(s) : p.254-261 Langues : Anglais (eng) Mots-clés : Theory of mind bullying involvement child development Index. décimale : PER Périodiques Résumé : Background: Theory of mind (ToM) allows the understanding and prediction of other people’s behaviours based on their mental states (e.g. beliefs). It is important for healthy social relationships and thus may contribute towards children’s involvement in bullying. The present study investigated whether children involved in bullying during early adolescence had poor ToM in childhood. Method: Participants were members of the Environmental Risk (E-Risk) Longitudinal Twin Study, a nationally representative sample of 2,232 children and their families. We visited families when children were 5, 7, 10 and 12 years. ToM was assessed when the children were 5 years using eight standardized tasks. Identification of those children who were involved in bullying as victims, bullies and bully-victims using mothers’, teachers’ and children’s reports was carried out when they were 12 years’ old. Results: Poor ToM predicted becoming a victim (effect size, d = 0.26), bully (d = 0.25) or bully-victim (d = 0.44) in early adolescence. These associations remained for victims and bully-victims when child-specific (e.g. IQ) and family factors (e.g. child maltreatment) were controlled for. Emotional and behavioural problems during middle childhood did not modify the association between poor ToM and adolescent bullying experiences. Conclusion: Identifying and supporting children with poor ToM early in life could help reduce their vulnerability for involvement in bullying and thus limit its adverse effects on mental health. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02488.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152
in Journal of Child Psychology and Psychiatry > 53-3 (March 2012) . - p.254-261[article] A prospective longitudinal study of children’s theory of mind and adolescent involvement in bullying [Texte imprimé et/ou numérique] / Sania SHAKOOR, Auteur ; Sara R. JAFFEE, Auteur ; Lucy BOWES, Auteur ; Isabelle OUELLET-MORIN, Auteur ; Penelope ANDREOU, Auteur ; Francesca HAPPE, Auteur ; Terrie E. MOFFITT, Auteur ; Louise ARSENEAULT, Auteur . - 2012 . - p.254-261.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 53-3 (March 2012) . - p.254-261
Mots-clés : Theory of mind bullying involvement child development Index. décimale : PER Périodiques Résumé : Background: Theory of mind (ToM) allows the understanding and prediction of other people’s behaviours based on their mental states (e.g. beliefs). It is important for healthy social relationships and thus may contribute towards children’s involvement in bullying. The present study investigated whether children involved in bullying during early adolescence had poor ToM in childhood. Method: Participants were members of the Environmental Risk (E-Risk) Longitudinal Twin Study, a nationally representative sample of 2,232 children and their families. We visited families when children were 5, 7, 10 and 12 years. ToM was assessed when the children were 5 years using eight standardized tasks. Identification of those children who were involved in bullying as victims, bullies and bully-victims using mothers’, teachers’ and children’s reports was carried out when they were 12 years’ old. Results: Poor ToM predicted becoming a victim (effect size, d = 0.26), bully (d = 0.25) or bully-victim (d = 0.44) in early adolescence. These associations remained for victims and bully-victims when child-specific (e.g. IQ) and family factors (e.g. child maltreatment) were controlled for. Emotional and behavioural problems during middle childhood did not modify the association between poor ToM and adolescent bullying experiences. Conclusion: Identifying and supporting children with poor ToM early in life could help reduce their vulnerability for involvement in bullying and thus limit its adverse effects on mental health. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02488.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152