Common genetic and nonshared environmental factors contribute to the association between socioemotional dispositions and the externalizing factor in children / Jeanette TAYLOR in Journal of Child Psychology and Psychiatry, 54-1 (January 2013)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 54-1 (January 2013) . - 67-76 Titre : Common genetic and nonshared environmental factors contribute to the association between socioemotional dispositions and the externalizing factor in children Type de document : Texte imprimé et/ou numérique Auteurs : Jeanette TAYLOR, Auteur ; Nicholas P. ALLAN, Auteur ; Amy J. MIKOLAJEWSKI, Auteur ; Sara A. HART, Auteur Article en page(s) : 67-76 Langues : Anglais (eng) Mots-clés : Externalizing  genetic  temperament  dispositions; Index. décimale : PER Périodiques Résumé : Background: Childhood behavioral disorders including conduct disorder (CD), oppositional defiant disorder (ODD), and attention-deficit/hyperactivity disorder (ADHD) often co-occur. Prior twin research shows that common sets of genetic and environmental factors are associated with these various disorders and they form a latent factor called Externalizing. The developmental propensity model posits that CD develops in part from socioemotional dispositions of Prosociality, Negative Emotionality, and Daring; and recent research has supported the expected genetic and environmental associations between these dispositions and CD. This study examined the developmental propensity model in relation to the broader Externalizing factor that represents the covariance among behavior disorders in children. Methods: Parents of 686 six- to twelve-year-old twin pairs rated them on symptoms of CD, ADHD, and ODD using the disruptive behavior disorder scale and on Prosociality, Negative Emotionality, and Daring using the Child and Adolescent Dispositions Scale. A latent factor multivariate Cholesky model was used with each disposition latent factor comprised of respective questionnaire items and the Externalizing factor comprised of symptom dimensions of CD, ADHD inattention, ADHD hyperactivity/impulsivity, and ODD. Results: Results supported the hypothesis that the socioemotional dispositions and the Externalizing factor have genetic factors in common, but there was not a single genetic factor associated with all of the constructs. As expected, nonshared environment factors were shared by the dispositions and Externalizing factor but, again, no single nonshared environmental factor was common to all constructs. A shared environmental factor was associated with both Negative Emotionality and Externalizing. Conclusions: The developmental propensity model was supported and appears to extend to the broader externalizing spectrum of childhood disorders. Socioemotional dispositions of prosociality, negative emotionality, and (to a lesser extent) daring may contribute to the covariation among behavioral disorders and perhaps to their comorbid expression through common sets of primarily genetic but also environmental factors. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2012.02621.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=186 [article] Common genetic and nonshared environmental factors contribute to the association between socioemotional dispositions and the externalizing factor in children [Texte imprimé et/ou numérique] / Jeanette TAYLOR, Auteur ; Nicholas P. ALLAN, Auteur ; Amy J. MIKOLAJEWSKI, Auteur ; Sara A. HART, Auteur . - 67-76. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 54-1 (January 2013) . - 67-76 Mots-clés : Externalizing  genetic  temperament  dispositions; Index. décimale : PER Périodiques Résumé : Background: Childhood behavioral disorders including conduct disorder (CD), oppositional defiant disorder (ODD), and attention-deficit/hyperactivity disorder (ADHD) often co-occur. Prior twin research shows that common sets of genetic and environmental factors are associated with these various disorders and they form a latent factor called Externalizing. The developmental propensity model posits that CD develops in part from socioemotional dispositions of Prosociality, Negative Emotionality, and Daring; and recent research has supported the expected genetic and environmental associations between these dispositions and CD. This study examined the developmental propensity model in relation to the broader Externalizing factor that represents the covariance among behavior disorders in children. Methods: Parents of 686 six- to twelve-year-old twin pairs rated them on symptoms of CD, ADHD, and ODD using the disruptive behavior disorder scale and on Prosociality, Negative Emotionality, and Daring using the Child and Adolescent Dispositions Scale. A latent factor multivariate Cholesky model was used with each disposition latent factor comprised of respective questionnaire items and the Externalizing factor comprised of symptom dimensions of CD, ADHD inattention, ADHD hyperactivity/impulsivity, and ODD. Results: Results supported the hypothesis that the socioemotional dispositions and the Externalizing factor have genetic factors in common, but there was not a single genetic factor associated with all of the constructs. As expected, nonshared environment factors were shared by the dispositions and Externalizing factor but, again, no single nonshared environmental factor was common to all constructs. A shared environmental factor was associated with both Negative Emotionality and Externalizing. Conclusions: The developmental propensity model was supported and appears to extend to the broader externalizing spectrum of childhood disorders. Socioemotional dispositions of prosociality, negative emotionality, and (to a lesser extent) daring may contribute to the covariation among behavioral disorders and perhaps to their comorbid expression through common sets of primarily genetic but also environmental factors. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2012.02621.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=186

Early classroom reading gains moderate shared environmental influences on reading comprehension in adolescence / Jeanette TAYLOR in Journal of Child Psychology and Psychiatry, 61-6 (June 2020)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 61-6 (June 2020) . - p.689-698 Titre : Early classroom reading gains moderate shared environmental influences on reading comprehension in adolescence Type de document : Texte imprimé et/ou numérique Auteurs : Jeanette TAYLOR, Auteur ; Florina ERBELI, Auteur ; Sara A. HART, Auteur ; Wendy JOHNSON, Auteur Article en page(s) : p.689-698 Langues : Anglais (eng) Mots-clés : Reading comprehension  environmental moderation  genetic influence Index. décimale : PER Périodiques Résumé : BACKGROUND: Reading is important for children's success in school and beyond, yet many adolescents fail to reach expected levels of proficiency. This highlights the need to better understand the factors that influence reading effectiveness over time, including genes and environment. Greater expression of genetic influence on first- and second-grade reading fluency has been observed in higher quality classroom reading environments. To what degree this early environment continues to influence genetic and other environmental influences on later reading is unknown and was tested in this study. METHODS: The quality of the early classroom reading environment was approximated by gains in oral reading fluency (ORF) across the school year among first- or second-grade classmates of 546 MZ and 1,016 DZ twin children (mean age = 7.13 years; SD = 0.45) who had reading comprehension scores from a state-wide mandatory test in school year 2013-2014 when most twin pairs were in seventh to tenth grade (mean age = 14.41; SD = 1.13) in a variable called Class ORF Gain. Biometrical models were fit to the data to assess whether Class ORF Gain moderated the genetic, shared environmental and/or nonshared environmental variance associated with adolescent reading comprehension. RESULTS: Class ORF Gain moderated shared environmental influences on reading comprehension 6-9 years later. When early classroom reading gains were poor, variability in reading comprehension in adolescence was high and was associated largely with shared environmental influences. When early classroom reading gains were good, overall and shared environmentally influenced variability in adolescent reading comprehension was lower so that genetic influences were most relevant in explaining that variability. CONCLUSIONS: Our findings suggested that classroom reading environment experienced when children were learning to read had a lasting influence on the factors underlying variability in later reading effectiveness. En ligne : http://dx.doi.org/10.1111/jcpp.13134 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426 [article] Early classroom reading gains moderate shared environmental influences on reading comprehension in adolescence [Texte imprimé et/ou numérique] / Jeanette TAYLOR, Auteur ; Florina ERBELI, Auteur ; Sara A. HART, Auteur ; Wendy JOHNSON, Auteur . - p.689-698. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-6 (June 2020) . - p.689-698 Mots-clés : Reading comprehension  environmental moderation  genetic influence Index. décimale : PER Périodiques Résumé : BACKGROUND: Reading is important for children's success in school and beyond, yet many adolescents fail to reach expected levels of proficiency. This highlights the need to better understand the factors that influence reading effectiveness over time, including genes and environment. Greater expression of genetic influence on first- and second-grade reading fluency has been observed in higher quality classroom reading environments. To what degree this early environment continues to influence genetic and other environmental influences on later reading is unknown and was tested in this study. METHODS: The quality of the early classroom reading environment was approximated by gains in oral reading fluency (ORF) across the school year among first- or second-grade classmates of 546 MZ and 1,016 DZ twin children (mean age = 7.13 years; SD = 0.45) who had reading comprehension scores from a state-wide mandatory test in school year 2013-2014 when most twin pairs were in seventh to tenth grade (mean age = 14.41; SD = 1.13) in a variable called Class ORF Gain. Biometrical models were fit to the data to assess whether Class ORF Gain moderated the genetic, shared environmental and/or nonshared environmental variance associated with adolescent reading comprehension. RESULTS: Class ORF Gain moderated shared environmental influences on reading comprehension 6-9 years later. When early classroom reading gains were poor, variability in reading comprehension in adolescence was high and was associated largely with shared environmental influences. When early classroom reading gains were good, overall and shared environmentally influenced variability in adolescent reading comprehension was lower so that genetic influences were most relevant in explaining that variability. CONCLUSIONS: Our findings suggested that classroom reading environment experienced when children were learning to read had a lasting influence on the factors underlying variability in later reading effectiveness. En ligne : http://dx.doi.org/10.1111/jcpp.13134 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426

Expanding the environment: gene × school-level SES interaction on reading comprehension / Sara A. HART in Journal of Child Psychology and Psychiatry, 54-10 (October 2013)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 54-10 (October 2013) . - p.1047-1055 Titre : Expanding the environment: gene × school-level SES interaction on reading comprehension Type de document : Texte imprimé et/ou numérique Auteurs : Sara A. HART, Auteur ; Brooke SODEN, Auteur ; Wendy JOHNSON, Auteur ; Christopher SCHATSCHNEIDER, Auteur ; Jeanette TAYLOR, Auteur Article en page(s) : p.1047-1055 Langues : Anglais (eng) Mots-clés : Reading comprehension  G × E interaction  school-level SES  bioecological model Index. décimale : PER Périodiques Résumé : Background Influential work has explored the role of family socioeconomic status (SES) as an environmental moderator of genetic and environmental influences on cognitive outcomes. This work has provided evidence that socioeconomic circumstances differentially impact the heritability of cognitive abilities, generally supporting the bioecological model in that genetic influences are greater at higher levels of family SES. The present work expanded consideration of the environment, using school-level SES as a moderator of reading comprehension. Methods The sample included 577 pairs of twins from the Florida Twin Project on Reading, Behavior and Environment. Reading comprehension was measured by the Florida Comprehensive Achievement Test (FCAT) Reading in third or fourth grade. School-level SES was measured by the mean Free and Reduced Lunch Status (FRLS) of the schoolmates of the twins. Results The best-fitting univariate G × E moderation model indicated greater genetic influences on reading comprehension when fewer schoolmates qualified for FRLS (i.e., ‘higher’ school-level SES). There was also an indication of moderation of the shared environment; there were greater shared environmental influences on reading comprehension at higher school-level SES. Conclusions The results supported the bioecological model; greater genetic variance was found in school environments in which student populations experienced less poverty. In general, ‘higher’ school-level SES allowed genetic and probably shared environmental variance to contribute as sources of individual differences in reading comprehension outcomes. Poverty suppresses these influences. En ligne : http://dx.doi.org/10.1111/jcpp.12083 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=212 [article] Expanding the environment: gene × school-level SES interaction on reading comprehension [Texte imprimé et/ou numérique] / Sara A. HART, Auteur ; Brooke SODEN, Auteur ; Wendy JOHNSON, Auteur ; Christopher SCHATSCHNEIDER, Auteur ; Jeanette TAYLOR, Auteur . - p.1047-1055. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 54-10 (October 2013) . - p.1047-1055 Mots-clés : Reading comprehension  G × E interaction  school-level SES  bioecological model Index. décimale : PER Périodiques Résumé : Background Influential work has explored the role of family socioeconomic status (SES) as an environmental moderator of genetic and environmental influences on cognitive outcomes. This work has provided evidence that socioeconomic circumstances differentially impact the heritability of cognitive abilities, generally supporting the bioecological model in that genetic influences are greater at higher levels of family SES. The present work expanded consideration of the environment, using school-level SES as a moderator of reading comprehension. Methods The sample included 577 pairs of twins from the Florida Twin Project on Reading, Behavior and Environment. Reading comprehension was measured by the Florida Comprehensive Achievement Test (FCAT) Reading in third or fourth grade. School-level SES was measured by the mean Free and Reduced Lunch Status (FRLS) of the schoolmates of the twins. Results The best-fitting univariate G × E moderation model indicated greater genetic influences on reading comprehension when fewer schoolmates qualified for FRLS (i.e., ‘higher’ school-level SES). There was also an indication of moderation of the shared environment; there were greater shared environmental influences on reading comprehension at higher school-level SES. Conclusions The results supported the bioecological model; greater genetic variance was found in school environments in which student populations experienced less poverty. In general, ‘higher’ school-level SES allowed genetic and probably shared environmental variance to contribute as sources of individual differences in reading comprehension outcomes. Poverty suppresses these influences. En ligne : http://dx.doi.org/10.1111/jcpp.12083 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=212

Oppositional defiant disorder dimensions: genetic influences and risk for later psychopathology / Amy J. MIKOLAJEWSKI in Journal of Child Psychology and Psychiatry, 58-6 (June 2017)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 58-6 (June 2017) . - p.702-710 Titre : Oppositional defiant disorder dimensions: genetic influences and risk for later psychopathology Type de document : Texte imprimé et/ou numérique Auteurs : Amy J. MIKOLAJEWSKI, Auteur ; Jeanette TAYLOR, Auteur ; William G. IACONO, Auteur Article en page(s) : p.702-710 Langues : Anglais (eng) Mots-clés : Oppositionality  symptom dimensions  genetic  environmental  longitudinal Index. décimale : PER Périodiques Résumé : Background This study was undertaken to determine how well two oppositional defiant disorder (ODD) dimensions (irritable and headstrong/hurtful) assessed in childhood predict late adolescent psychopathology and the degree to which these outcomes can be attributed to genetic influences shared with ODD dimensions. Methods Psychopathology was assessed via diagnostic interviews of 1,225 twin pairs at ages 11 and 17. Results Consistent with hypotheses, the irritable dimension uniquely predicted overall internalizing problems, whereas the headstrong/hurtful dimension uniquely predicted substance use disorder symptoms. Both dimensions were predictive of antisocial behavior and overall externalizing problems. The expected relationships between the irritable dimension and specific internalizing disorders were not found. Twin modeling showed that the irritable and headstrong/hurtful dimensions were related to late adolescent psychopathology symptoms through common genetic influences. Conclusions Symptoms of ODD in childhood pose a significant risk for various mental health outcomes in late adolescence. Further, common genetic influences underlie the covariance between irritable symptoms in childhood and overall internalizing problems in late adolescence, whereas headstrong/hurtful symptoms share genetic influences with substance use disorder symptoms. Antisocial behavior and overall externalizing share common genetic influences with both the irritable and headstrong/hurtful dimensions. En ligne : http://dx.doi.org/10.1111/jcpp.12683 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=308 [article] Oppositional defiant disorder dimensions: genetic influences and risk for later psychopathology [Texte imprimé et/ou numérique] / Amy J. MIKOLAJEWSKI, Auteur ; Jeanette TAYLOR, Auteur ; William G. IACONO, Auteur . - p.702-710. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 58-6 (June 2017) . - p.702-710 Mots-clés : Oppositionality  symptom dimensions  genetic  environmental  longitudinal Index. décimale : PER Périodiques Résumé : Background This study was undertaken to determine how well two oppositional defiant disorder (ODD) dimensions (irritable and headstrong/hurtful) assessed in childhood predict late adolescent psychopathology and the degree to which these outcomes can be attributed to genetic influences shared with ODD dimensions. Methods Psychopathology was assessed via diagnostic interviews of 1,225 twin pairs at ages 11 and 17. Results Consistent with hypotheses, the irritable dimension uniquely predicted overall internalizing problems, whereas the headstrong/hurtful dimension uniquely predicted substance use disorder symptoms. Both dimensions were predictive of antisocial behavior and overall externalizing problems. The expected relationships between the irritable dimension and specific internalizing disorders were not found. Twin modeling showed that the irritable and headstrong/hurtful dimensions were related to late adolescent psychopathology symptoms through common genetic influences. Conclusions Symptoms of ODD in childhood pose a significant risk for various mental health outcomes in late adolescence. Further, common genetic influences underlie the covariance between irritable symptoms in childhood and overall internalizing problems in late adolescence, whereas headstrong/hurtful symptoms share genetic influences with substance use disorder symptoms. Antisocial behavior and overall externalizing share common genetic influences with both the irritable and headstrong/hurtful dimensions. En ligne : http://dx.doi.org/10.1111/jcpp.12683 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=308

Personality differences in children and adolescents with attention-deficit/hyperactivity disorder, conduct disorder, and controls / Kelly C. CUKROWICZ in Journal of Child Psychology and Psychiatry, 47-2 (February 2006)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 47-2 (February 2006) . - p.151–159 Titre : Personality differences in children and adolescents with attention-deficit/hyperactivity disorder, conduct disorder, and controls Type de document : Texte imprimé et/ou numérique Auteurs : Kelly C. CUKROWICZ, Auteur ; Jeanette TAYLOR, Auteur ; William G. IACONO, Auteur ; Christopher SCHATSCHNEIDER, Auteur Année de publication : 2006 Article en page(s) : p.151–159 Langues : Anglais (eng) Mots-clés : Personality attention-deficit/hyperactivity-disorder conduct-disorder Index. décimale : PER Périodiques Résumé : Background: Differences in personality profiles were examined between children who differed in their co-morbidity of externalizing disorders: attention-deficit/hyperactivity disorder (ADHD) and conduct disorder (CD). Methods: 11- and 17-year-old male and female twins from a community sample were categorized as ADHD only, CD only, co-morbid CD-ADHD, and controls (no ADHD or CD) based on threshold and subthreshold CD and ADHD diagnoses assessed with structured interviews. Multivariate analyses were used to identify patterns of personality that differentiate these four diagnostic groups. It was hypothesized that significant differences would be found in the pattern of personality variables between participants in the co-morbid group, compared to the other three groups, and that these differences would hold across developmental periods. Results: As expected, the co-morbid group had a pattern of personality marked by higher Negative Emotionality and lower Constraint than the other diagnostic groups. This pattern was evidenced across gender and age cohort. Conclusions: An extreme personality profile may represent a liability toward the occurrence of ADHD and CD with more extreme profiles contributing to the occurrence of both disorders among boys and girls. Implications for treatment planning and theoretical development are discussed. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2005.01461.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=713 [article] Personality differences in children and adolescents with attention-deficit/hyperactivity disorder, conduct disorder, and controls [Texte imprimé et/ou numérique] / Kelly C. CUKROWICZ, Auteur ; Jeanette TAYLOR, Auteur ; William G. IACONO, Auteur ; Christopher SCHATSCHNEIDER, Auteur . - 2006 . - p.151–159. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 47-2 (February 2006) . - p.151–159 Mots-clés : Personality attention-deficit/hyperactivity-disorder conduct-disorder Index. décimale : PER Périodiques Résumé : Background: Differences in personality profiles were examined between children who differed in their co-morbidity of externalizing disorders: attention-deficit/hyperactivity disorder (ADHD) and conduct disorder (CD). Methods: 11- and 17-year-old male and female twins from a community sample were categorized as ADHD only, CD only, co-morbid CD-ADHD, and controls (no ADHD or CD) based on threshold and subthreshold CD and ADHD diagnoses assessed with structured interviews. Multivariate analyses were used to identify patterns of personality that differentiate these four diagnostic groups. It was hypothesized that significant differences would be found in the pattern of personality variables between participants in the co-morbid group, compared to the other three groups, and that these differences would hold across developmental periods. Results: As expected, the co-morbid group had a pattern of personality marked by higher Negative Emotionality and lower Constraint than the other diagnostic groups. This pattern was evidenced across gender and age cohort. Conclusions: An extreme personality profile may represent a liability toward the occurrence of ADHD and CD with more extreme profiles contributing to the occurrence of both disorders among boys and girls. Implications for treatment planning and theoretical development are discussed. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2005.01461.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=713

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