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Bedford, Rachael; Pickles, Andrew; Gliga, Teodora; Elsabbagh, Mayada; Charman, Tony; Johnson, Mark H. – Developmental Science, 2014
Emerging findings from studies with infants at familial high risk for autism spectrum disorder (ASD), owing to an older sibling with a diagnosis, suggest that those who go on to develop ASD show early impairments in the processing of stimuli with both social and non-social content. Although ASD is defined by social-communication impairments and…
Descriptors: Infants, Autism, Attention, Eye Movements
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Hayiou-Thomas, Marianna E.; Dale, Philip S.; Plomin, Robert – Developmental Science, 2012
The present study is the first long-term longitudinal examination of the etiology of individual differences in language from early childhood through to adolescence. We applied a multivariate latent factor genetic model to longitudinal data from the Twins Early Development Study in order to (a) compare the magnitude of genetic and environmental…
Descriptors: Early Adolescents, Children, Genetics, Etiology
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Kan, Kees-Jan; Ploeger, Annemie; Raijmakers, Maartje E. J.; Dolan, Conor V.; van Der Maas, Han L. J. – Developmental Science, 2010
We present a review of empirical evidence that suggests that a substantial portion of phenotypic variance is due to nonlinear (epigenetic) processes during ontogenesis. The role of such processes as a source of phenotypic variance in human behaviour genetic studies is not fully appreciated. In addition to our review, we present simulation studies…
Descriptors: Twins, Simulation, Genetics, Models
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Lau, Jennifer Y. F.; Belli, Stefano D.; Gregory, Alice M.; Napolitano, Maria; Eley, Thalia C. – Developmental Science, 2012
Negative attributional style has been associated with depressive symptoms in children. Yet, it is unclear whether these cognitive biases reflect inherited characteristics of the broader depressive phenotype or are a product of children's environments. While existing data in adolescents show that negative attributions reflect a genetic…
Descriptors: Twins, Adolescents, Genetics, Environmental Influences