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Direct linkRice, Mabel L. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: This review article summarizes a program of longitudinal investigation of twins' language acquisition with a focus on causal pathways for specific language impairment (SLI) and nonspecific language impairment in children at 4 and 6 years with known history at 2 years. Method: The context of the overview is established by legacy scientific…
Descriptors: Twins, Genetics, Language Impairments, Age Differences
Zampini, Laura; Draghi, Lara; Silibello, Gaia; Dall'Ara, Francesca; Rigamonti, Claudia; Suttora, Chiara; Zanchi, Paola; Salerni, Nicoletta; Lalatta, Faustina; Vizziello, Paola – International Journal of Language & Communication Disorders, 2018
Background: Children with sex chromosome trisomies (SCT) frequently show problems in language development. However, a clear description of the communicative patterns of these children is still lacking. Aims: To describe the first stages of language development in children with SCT in comparison with those in typically developing (TD) children. The…
Descriptors: Infants, Language Acquisition, Vocabulary Development, Play
Hayiou-Thomas, Marianna E.; Dale, Philip S.; Plomin, Robert – Journal of Speech, Language, and Hearing Research, 2014
Purpose: The authors of this article examined the etiology of developmental language impairment (LI) at 4 and 12 years of age, as well as the relationship between the 2. Method: Phenotypic and quantitative genetic analyses using longitudinal data from the Twins Early Development Study (Oliver & Plomin, 2007) were conducted. A total of 2,923…
Descriptors: Language Impairments, Prediction, Etiology, Twins
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
Peer reviewedDale, Philip S.; Ginette, Dionne; Eley, Thalia C.; Plomin, Robert – Journal of Child Language, 2000
Assessed the language development of 2,898 pairs of 2-year-old twins born in England and Wales using the MacArthur Communicative language Development Inventory, which assesses vocabulary and grammar. Moderate heritabilities were found for both. (Author/VWL)
Descriptors: Foreign Countries, Genetics, Grammar, Language Acquisition
