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A longitudinal twin study of callous-unemotional traits during childhood

dc.contributor.authorHenry, Jeffrey
dc.contributor.authorDionne, Ginette
dc.contributor.authorViding, Essi
dc.contributor.authorPetitclerc, Amélie
dc.contributor.authorFeng, Bei
dc.contributor.authorVitaro, Frank
dc.contributor.authorBrendgen, Mara
dc.contributor.authorTremblay, Richard Ernest
dc.contributor.authorBoivin, Michel
dc.publisherAmerican Psychological Associationfr
dc.subjectCallous-unemotional traitsfr
dc.subjectGenetic-environmental aetiologyfr
dc.subjectCholesky decompositionfr
dc.subjectLinear latent growth curve modelfr
dc.subjectTwin studiesfr
dc.titleA longitudinal twin study of callous-unemotional traits during childhoodfr
dc.contributor.affiliationUniversité de Montréal. Faculté des arts et des sciences. École de psychoéducationfr
dc.contributor.affiliationUniversité de Montréal. Faculté de médecine. Département de psychiatriefr
dcterms.abstractPrevious research indicates that genetic factors largely account for the stability of callous-unemotional (CU) traits in adolescence. However, the genetic-environmental etiology of the development of CU traits has not been extensively investigated in childhood, despite work showing the reliable measurement and stability of CU traits from a young age. The aim of this study was to investigate the temporal pattern of genetic and environmental etiology of CU traits across primary school, from school entry (7 years) to middle (9 and 10 years) and late childhood (12 years). Data were collected in a population sample of twins composed of 662 twin pairs (Quebec Newborn Twin Study). CU traits were reported by teachers and analyzed using a biometric latent growth curve model and a Cholesky decomposition model. Latent growth curve analyses revealed that genetic factors explain most of the variance in the intercept of CU traits. Individual differences in change over time were not significant. The Cholesky model revealed that genetic factors at 7 years had enduring contributions to CU traits at 9, 10, and 12 years. New, modest genetic contributions appeared at 9 and 10 years. Nonshared environmental contributions were generally age-specific. No shared environmental contributions were detected. In sum, both modeling approaches showed that genetic factors underlie CU traits during childhood. Initial and new genetic contributions arise during this period. Environments have substantial contributions, over and above genetic factors. Future research should investigate the source of genetic risk associated with CU
dcterms.alternativeLongitudinal twin callous-unemotional, 1fr
UdeM.ReferenceFournieParDeposantHenry, J., Dionne, G., Viding, E., Petitclerc, A., Feng, B., Vitaro, F., ... & Boivin, M. (2018). A longitudinal twin study of callous-unemotional traits during childhood. Journal of abnormal psychology, 127(4),
UdeM.VersionRioxxVersion acceptée / Accepted Manuscriptfr
oaire.citationTitleJournal of abnormal psychology

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