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Auteur Mara BRENDGEN |
Documents disponibles écrits par cet auteur (18)
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Phenotypic and genetic associations between reading and attention-deficit/hyperactivity disorder dimensions in adolescence / Vickie PLOURDE in Development and Psychopathology, 29-4 (October 2017)
[article]
Titre : Phenotypic and genetic associations between reading and attention-deficit/hyperactivity disorder dimensions in adolescence Type de document : Texte imprimé et/ou numérique Auteurs : Vickie PLOURDE, Auteur ; Michel BOIVIN, Auteur ; Mara BRENDGEN, Auteur ; Frank VITARO, Auteur ; Ginette DIONNE, Auteur Article en page(s) : p.1215-1226 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract Multiple studies have shown that reading abilities and attention-deficit/hyperactivity disorder symptoms, mainly inattention symptoms, are phenotypically and genetically associated during childhood. However, few studies have looked at these associations during adolescence to investigate possible developmental changes. The aim of the study is to examine the genetic and environmental etiology of the associations between inattention and hyperactivity reported by parents, and reading accuracy, reading speed, and word reading in a population-based twin sample (Quebec Newborn Twin Study). Participants were between 14 and 15 years of age at the time of testing (N = 668–837). Phenotypic results showed that when nonverbal and verbal abilities were controlled, inattention, but not hyperactivity/impulsivity, was a modest and significant predictor of reading accuracy, reading speed, and word reading. The associations between inattention and all reading abilities were partly explained by genetic and unique environmental factors. However, the genetic correlations were no longer significant after controlling for verbal abilities. In midadolescence, inattention is the attention-deficit/hyperactivity disorder dimension associated with reading abilities, but they could also share genetic factors with general verbal skills. En ligne : http://dx.doi.org/10.1017/s0954579416001255 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=312
in Development and Psychopathology > 29-4 (October 2017) . - p.1215-1226[article] Phenotypic and genetic associations between reading and attention-deficit/hyperactivity disorder dimensions in adolescence [Texte imprimé et/ou numérique] / Vickie PLOURDE, Auteur ; Michel BOIVIN, Auteur ; Mara BRENDGEN, Auteur ; Frank VITARO, Auteur ; Ginette DIONNE, Auteur . - p.1215-1226.
Langues : Anglais (eng)
in Development and Psychopathology > 29-4 (October 2017) . - p.1215-1226
Index. décimale : PER Périodiques Résumé : Abstract Multiple studies have shown that reading abilities and attention-deficit/hyperactivity disorder symptoms, mainly inattention symptoms, are phenotypically and genetically associated during childhood. However, few studies have looked at these associations during adolescence to investigate possible developmental changes. The aim of the study is to examine the genetic and environmental etiology of the associations between inattention and hyperactivity reported by parents, and reading accuracy, reading speed, and word reading in a population-based twin sample (Quebec Newborn Twin Study). Participants were between 14 and 15 years of age at the time of testing (N = 668–837). Phenotypic results showed that when nonverbal and verbal abilities were controlled, inattention, but not hyperactivity/impulsivity, was a modest and significant predictor of reading accuracy, reading speed, and word reading. The associations between inattention and all reading abilities were partly explained by genetic and unique environmental factors. However, the genetic correlations were no longer significant after controlling for verbal abilities. In midadolescence, inattention is the attention-deficit/hyperactivity disorder dimension associated with reading abilities, but they could also share genetic factors with general verbal skills. En ligne : http://dx.doi.org/10.1017/s0954579416001255 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=312 Phenotypic and genetic associations between reading comprehension, decoding skills, and ADHD dimensions: evidence from two population-based studies / Vickie PLOURDE in Journal of Child Psychology and Psychiatry, 56-10 (October 2015)
[article]
Titre : Phenotypic and genetic associations between reading comprehension, decoding skills, and ADHD dimensions: evidence from two population-based studies Type de document : Texte imprimé et/ou numérique Auteurs : Vickie PLOURDE, Auteur ; Michel BOIVIN, Auteur ; Nadine FORGET-DUBOIS, Auteur ; Mara BRENDGEN, Auteur ; Frank VITARO, Auteur ; Cecilia MARINO, Auteur ; Richard T. TREMBLAY, Auteur ; Ginette DIONNE, Auteur Article en page(s) : p.1074-1082 Langues : Anglais (eng) Mots-clés : Reading decoding comprehension inattention hyperactivity/impulsivity population-based studies Index. décimale : PER Périodiques Résumé : Background The phenotypic and genetic associations between decoding skills and ADHD dimensions have been documented but less is known about the association with reading comprehension. The aim of the study is to document the phenotypic and genetic associations between reading comprehension and ADHD dimensions of inattention and hyperactivity/impulsivity in early schooling and compare them to those with decoding skills. Methods Data were collected in two population-based samples of twins (Quebec Newborn Twin Study – QNTS) and singletons (Quebec Longitudinal Study of Child Development – QLSCD) totaling ? 2300 children. Reading was assessed with normed measures in second or third grade. Teachers assessed ADHD dimensions in kindergarten and first grade. Results Both decoding and reading comprehension were correlated with ADHD dimensions in a similar way: associations with inattention remained after controlling for the other ADHD dimension, behavior disorder symptoms and nonverbal abilities, whereas associations with hyperactivity/impulsivity did not. Genetic modeling showed that decoding and comprehension largely shared the same genetic etiology at this age and that their associations with inattention were mostly explained by shared genetic influences. Conclusion Both reading comprehension and decoding are uniquely associated with inattention through a shared genetic etiology. En ligne : http://dx.doi.org/10.1111/jcpp.12394 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=269
in Journal of Child Psychology and Psychiatry > 56-10 (October 2015) . - p.1074-1082[article] Phenotypic and genetic associations between reading comprehension, decoding skills, and ADHD dimensions: evidence from two population-based studies [Texte imprimé et/ou numérique] / Vickie PLOURDE, Auteur ; Michel BOIVIN, Auteur ; Nadine FORGET-DUBOIS, Auteur ; Mara BRENDGEN, Auteur ; Frank VITARO, Auteur ; Cecilia MARINO, Auteur ; Richard T. TREMBLAY, Auteur ; Ginette DIONNE, Auteur . - p.1074-1082.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 56-10 (October 2015) . - p.1074-1082
Mots-clés : Reading decoding comprehension inattention hyperactivity/impulsivity population-based studies Index. décimale : PER Périodiques Résumé : Background The phenotypic and genetic associations between decoding skills and ADHD dimensions have been documented but less is known about the association with reading comprehension. The aim of the study is to document the phenotypic and genetic associations between reading comprehension and ADHD dimensions of inattention and hyperactivity/impulsivity in early schooling and compare them to those with decoding skills. Methods Data were collected in two population-based samples of twins (Quebec Newborn Twin Study – QNTS) and singletons (Quebec Longitudinal Study of Child Development – QLSCD) totaling ? 2300 children. Reading was assessed with normed measures in second or third grade. Teachers assessed ADHD dimensions in kindergarten and first grade. Results Both decoding and reading comprehension were correlated with ADHD dimensions in a similar way: associations with inattention remained after controlling for the other ADHD dimension, behavior disorder symptoms and nonverbal abilities, whereas associations with hyperactivity/impulsivity did not. Genetic modeling showed that decoding and comprehension largely shared the same genetic etiology at this age and that their associations with inattention were mostly explained by shared genetic influences. Conclusion Both reading comprehension and decoding are uniquely associated with inattention through a shared genetic etiology. En ligne : http://dx.doi.org/10.1111/jcpp.12394 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=269 The phenotypic associations and gene-environment underpinnings of socioeconomic status and diurnal cortisol secretion in adolescence / Christina Y. CANTAVE in Development and Psychopathology, 35-3 (August 2023)
[article]
Titre : The phenotypic associations and gene-environment underpinnings of socioeconomic status and diurnal cortisol secretion in adolescence Type de document : Texte imprimé et/ou numérique Auteurs : Christina Y. CANTAVE, Auteur ; Mara BRENDGEN, Auteur ; Stéphane PAQUIN, Auteur ; Sonia LUPIEN, Auteur ; Ginette DIONNE, Auteur ; Frank VITARO, Auteur ; Michel BOIVIN, Auteur ; Isabelle OUELLET-MORIN, Auteur Article en page(s) : p.1119-1129 Langues : Anglais (eng) Mots-clés : cortisol gene-environment interactions heritability HPA-axis socioeconomic status Index. décimale : PER Périodiques Résumé : While converging evidence suggests that both environmental and genetic factors underlie variations in diurnal cortisol, the extent to which these sources of influence vary according to socioeconomic status (SES) has seldom been investigated, particularly in adolescence. To investigate whether a distinct genetic and environmental contribution to youth?s diurnal cortisol secretion emerges according to family SES and whether the timing of these experiences matters. Participants were 592 twin pairs, who mostly came from middle-income and intact families and for whom SES was measured in childhood and adolescence. Diurnal cortisol was assessed at age 14 at awakening, 30 min later, in the afternoon and evening over four nonconsecutive days. SES-cortisol phenotypic associations were specific to the adolescence period. Specifically, higher awakening cortisol levels were detected in wealthier backgrounds, whereas higher cortisol awakening response (CAR) and diurnal changes were present at both ends of the SES continuum. Moreover, smaller genetic contributions emerged for awakening cortisol in youth from poorer compared to wealthier backgrounds. The results suggest that the relative contribution of inherited factors to awakening cortisol secretion may be enhanced or suppressed depending on the socio-family context, which may help to decipher the mechanisms underlying later adjustment. En ligne : http://dx.doi.org/10.1017/S0954579421001048 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510
in Development and Psychopathology > 35-3 (August 2023) . - p.1119-1129[article] The phenotypic associations and gene-environment underpinnings of socioeconomic status and diurnal cortisol secretion in adolescence [Texte imprimé et/ou numérique] / Christina Y. CANTAVE, Auteur ; Mara BRENDGEN, Auteur ; Stéphane PAQUIN, Auteur ; Sonia LUPIEN, Auteur ; Ginette DIONNE, Auteur ; Frank VITARO, Auteur ; Michel BOIVIN, Auteur ; Isabelle OUELLET-MORIN, Auteur . - p.1119-1129.
Langues : Anglais (eng)
in Development and Psychopathology > 35-3 (August 2023) . - p.1119-1129
Mots-clés : cortisol gene-environment interactions heritability HPA-axis socioeconomic status Index. décimale : PER Périodiques Résumé : While converging evidence suggests that both environmental and genetic factors underlie variations in diurnal cortisol, the extent to which these sources of influence vary according to socioeconomic status (SES) has seldom been investigated, particularly in adolescence. To investigate whether a distinct genetic and environmental contribution to youth?s diurnal cortisol secretion emerges according to family SES and whether the timing of these experiences matters. Participants were 592 twin pairs, who mostly came from middle-income and intact families and for whom SES was measured in childhood and adolescence. Diurnal cortisol was assessed at age 14 at awakening, 30 min later, in the afternoon and evening over four nonconsecutive days. SES-cortisol phenotypic associations were specific to the adolescence period. Specifically, higher awakening cortisol levels were detected in wealthier backgrounds, whereas higher cortisol awakening response (CAR) and diurnal changes were present at both ends of the SES continuum. Moreover, smaller genetic contributions emerged for awakening cortisol in youth from poorer compared to wealthier backgrounds. The results suggest that the relative contribution of inherited factors to awakening cortisol secretion may be enhanced or suppressed depending on the socio-family context, which may help to decipher the mechanisms underlying later adjustment. En ligne : http://dx.doi.org/10.1017/S0954579421001048 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510