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Developmental Path between Language and Autistic-Like Impairments: A Twin Study
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Dworzynski, Katharina; Ronald, Angelica; Hayiou-Thomas, Marianna E.; McEwan, Fiona; Happe, Francesca; Bolton, Patrick; Plomin, Robert – Infant and Child Development, 2008
Autism spectrum disorders (ASDs) are diagnosed when individuals show impairments in three behavioural domains: communication, social interactions, and repetitive, restrictive behaviours and interests (RRBIs). Recent data suggest that these three sets of behaviours are genetically heterogeneous. Early language delay is strongly associated with ASD,…
Descriptors: Twins, Delayed Speech, Autism, Asperger Syndrome
Aetiological Relationship between Language Performance and Autistic-Like Traits in Childhood: A Twin Study
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Dworzynski, Katharina; Ronald, Angelica; Hayiou-Thomas, Marianna; Rijsdijk, Fruhling; Happe, Francesca; Bolton, Patrick F.; Plomin, Robert – International Journal of Language & Communication Disorders, 2007
Background: Impairments in language and communication are core features of autism spectrum disorders (ASDs). The basis for this association is poorly understood. How early language is related to each of the triad of impairments characteristic of ASDs is also in need of clarification. Aims: This is the first study that aims to determine the extent…
Descriptors: Language Aptitude, Genetics, Children, Asperger Syndrome