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Détail de l'auteur
Auteur S. H. AGGEN |
Documents disponibles écrits par cet auteur (2)
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Development of ADHD symptoms in preschool children: Genetic and environmental contributions / E. M. EILERTSEN in Development and Psychopathology, 31-4 (October 2019)
[article]
Titre : Development of ADHD symptoms in preschool children: Genetic and environmental contributions Type de document : Texte imprimé et/ou numérique Auteurs : E. M. EILERTSEN, Auteur ; L. C. GJERDE, Auteur ; Kenneth S. KENDLER, Auteur ; E. ROYSAMB, Auteur ; S. H. AGGEN, Auteur ; K. GUSTAVSON, Auteur ; T. REICHBORN-KJENNERUD, Auteur ; E. YSTROM, Auteur Article en page(s) : p.1299-1305 Langues : Anglais (eng) Mots-clés : Norwegian Mother and Child Cohort Study (MoBa) attention-deficit/hyperactivity disorder symptoms heritability longitudinal twin study Index. décimale : PER Périodiques Résumé : We examined genetic and environmental contributions to the development of symptoms of attention-deficit/hyperactivity disorder (ADHD) in preschool children. ADHD symptoms in siblings at 1.5, 3, and 5 years of age were investigated in a population-based sample from the prospective Norwegian Mother and Child Cohort Study. The longitudinal contributions of additive genetic, shared, twin-specific, and unique environmental influences were estimated using biometric structural equation models. Heritability of ADHD symptoms ranged from 54% to 70%. There was evidence of partially new genetic influences at successive ages, with genetic correlations ranging from .58 to .89. Contributions from shared environmental factors and twin-specific factors were minor. The importance of unique environmental effects appeared to increase across ages, and was mostly specific to a given age. There was no evidence suggesting that this pattern differs across males and females. Symptoms of ADHD are highly heritability in young children from as early as 1.5 years of age. Longitudinal stability of ADHD symptoms is mainly attributable to genetic influences, but there is also some evidence for age-specific genetic influences. These findings contribute to our understanding of development of ADHD early in life, and can guide future molecular genetics studies. En ligne : http://dx.doi.org/10.1017/s0954579418000731 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406
in Development and Psychopathology > 31-4 (October 2019) . - p.1299-1305[article] Development of ADHD symptoms in preschool children: Genetic and environmental contributions [Texte imprimé et/ou numérique] / E. M. EILERTSEN, Auteur ; L. C. GJERDE, Auteur ; Kenneth S. KENDLER, Auteur ; E. ROYSAMB, Auteur ; S. H. AGGEN, Auteur ; K. GUSTAVSON, Auteur ; T. REICHBORN-KJENNERUD, Auteur ; E. YSTROM, Auteur . - p.1299-1305.
Langues : Anglais (eng)
in Development and Psychopathology > 31-4 (October 2019) . - p.1299-1305
Mots-clés : Norwegian Mother and Child Cohort Study (MoBa) attention-deficit/hyperactivity disorder symptoms heritability longitudinal twin study Index. décimale : PER Périodiques Résumé : We examined genetic and environmental contributions to the development of symptoms of attention-deficit/hyperactivity disorder (ADHD) in preschool children. ADHD symptoms in siblings at 1.5, 3, and 5 years of age were investigated in a population-based sample from the prospective Norwegian Mother and Child Cohort Study. The longitudinal contributions of additive genetic, shared, twin-specific, and unique environmental influences were estimated using biometric structural equation models. Heritability of ADHD symptoms ranged from 54% to 70%. There was evidence of partially new genetic influences at successive ages, with genetic correlations ranging from .58 to .89. Contributions from shared environmental factors and twin-specific factors were minor. The importance of unique environmental effects appeared to increase across ages, and was mostly specific to a given age. There was no evidence suggesting that this pattern differs across males and females. Symptoms of ADHD are highly heritability in young children from as early as 1.5 years of age. Longitudinal stability of ADHD symptoms is mainly attributable to genetic influences, but there is also some evidence for age-specific genetic influences. These findings contribute to our understanding of development of ADHD early in life, and can guide future molecular genetics studies. En ligne : http://dx.doi.org/10.1017/s0954579418000731 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406 Heritability, stability, and prevalence of tonic and phasic irritability as indicators of disruptive mood dysregulation disorder / A. A. MOORE in Journal of Child Psychology and Psychiatry, 60-9 (September 2019)
[article]
Titre : Heritability, stability, and prevalence of tonic and phasic irritability as indicators of disruptive mood dysregulation disorder Type de document : Texte imprimé et/ou numérique Auteurs : A. A. MOORE, Auteur ; D. M. LAPATO, Auteur ; Melissa A. BROTMAN, Auteur ; E. LEIBENLUFT, Auteur ; S. H. AGGEN, Auteur ; J. M. HETTEMA, Auteur ; T. P. YORK, Auteur ; J. L. SILBERG, Auteur ; R. ROBERSON-NAY, Auteur Article en page(s) : p.1032-1041 Langues : Anglais (eng) Mots-clés : Disruptive behavior emotional dysregulation heritability mood disorder twins Index. décimale : PER Périodiques Résumé : BACKGROUND: Little is known about genetic and environmental influences on the components of disruptive mood dysregulation disorder (DMDD), tonic irritability (i.e., irritable mood) and phasic irritability (i.e., temper outbursts). This study examined prevalence, stability, and heritability of tonic irritability, phasic irritability, and a DMDD proxy (pDMDD) based on DSM-5 criteria. METHODS: pDMDD was derived using data from clinical interviews of parents and their twins (N = 1,431 twin pairs), ages 8-17, participating in Waves 1 and 2 of the Virginia Twin Study of Adolescent Behavioral Development. Biometrical modeling was used to compare a common pathway model (CPM) and an independent pathway model (IPM), and heritability estimates were obtained for pDMDD using the symptoms of irritable mood (tonic irritability; DMDD Criterion D), intense temper outbursts (phasic irritability; DMDD Criterion A), and frequent temper outbursts (phasic irritability; DMDD Criterion C). RESULTS: Lifetime prevalence of pDMDD was 7.46%. The stability of DMDD symptoms and the pDMDD phenotype across approximately one year were moderate (.30-.69). A CPM was a better fit to the data than an IPM. Phasic irritability loaded strongly onto the pDMDD latent factor (.89-.96) whereas tonic irritability did not (.28). Genetic influences accounted for approximately 59% of the variance in the latent pDMDD phenotype, with the remaining 41% of the variance due to unique environmental effects. The heritability of tonic irritability (54%) was slightly lower than that of frequent and intense temper (components of phasic irritability; 61% and 63%, respectively). CONCLUSIONS: Compared to tonic irritability, phasic irritability appears to be slightly more stable and heritable, as well as a stronger indicator of the latent factor. Furthermore, environmental experiences appear to play a substantial role in the development of irritability and DMDD, and researchers should seek to elucidate these mechanisms in future work. En ligne : http://dx.doi.org/10.1111/jcpp.13062 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=405
in Journal of Child Psychology and Psychiatry > 60-9 (September 2019) . - p.1032-1041[article] Heritability, stability, and prevalence of tonic and phasic irritability as indicators of disruptive mood dysregulation disorder [Texte imprimé et/ou numérique] / A. A. MOORE, Auteur ; D. M. LAPATO, Auteur ; Melissa A. BROTMAN, Auteur ; E. LEIBENLUFT, Auteur ; S. H. AGGEN, Auteur ; J. M. HETTEMA, Auteur ; T. P. YORK, Auteur ; J. L. SILBERG, Auteur ; R. ROBERSON-NAY, Auteur . - p.1032-1041.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 60-9 (September 2019) . - p.1032-1041
Mots-clés : Disruptive behavior emotional dysregulation heritability mood disorder twins Index. décimale : PER Périodiques Résumé : BACKGROUND: Little is known about genetic and environmental influences on the components of disruptive mood dysregulation disorder (DMDD), tonic irritability (i.e., irritable mood) and phasic irritability (i.e., temper outbursts). This study examined prevalence, stability, and heritability of tonic irritability, phasic irritability, and a DMDD proxy (pDMDD) based on DSM-5 criteria. METHODS: pDMDD was derived using data from clinical interviews of parents and their twins (N = 1,431 twin pairs), ages 8-17, participating in Waves 1 and 2 of the Virginia Twin Study of Adolescent Behavioral Development. Biometrical modeling was used to compare a common pathway model (CPM) and an independent pathway model (IPM), and heritability estimates were obtained for pDMDD using the symptoms of irritable mood (tonic irritability; DMDD Criterion D), intense temper outbursts (phasic irritability; DMDD Criterion A), and frequent temper outbursts (phasic irritability; DMDD Criterion C). RESULTS: Lifetime prevalence of pDMDD was 7.46%. The stability of DMDD symptoms and the pDMDD phenotype across approximately one year were moderate (.30-.69). A CPM was a better fit to the data than an IPM. Phasic irritability loaded strongly onto the pDMDD latent factor (.89-.96) whereas tonic irritability did not (.28). Genetic influences accounted for approximately 59% of the variance in the latent pDMDD phenotype, with the remaining 41% of the variance due to unique environmental effects. The heritability of tonic irritability (54%) was slightly lower than that of frequent and intense temper (components of phasic irritability; 61% and 63%, respectively). CONCLUSIONS: Compared to tonic irritability, phasic irritability appears to be slightly more stable and heritable, as well as a stronger indicator of the latent factor. Furthermore, environmental experiences appear to play a substantial role in the development of irritability and DMDD, and researchers should seek to elucidate these mechanisms in future work. En ligne : http://dx.doi.org/10.1111/jcpp.13062 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=405