Genetic and Environmental Influences on Early Speech, Language and Literacy Development

Autor/in	Hayiou-Thomas, Marianna E.
Titel	Genetic and Environmental Influences on Early Speech, Language and Literacy Development
Quelle	In: Journal of Communication Disorders, 41 (2008) 5, S.397-408 (12 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9924
DOI	10.1016/j.jcomdis.2008.03.002
Schlagwörter	Twins; Language Impairments; Young Children; Genetics; Etiology; Literacy; Environmental Influences; Language Skills; Reading; Speech; Communication Disorders + Suchen Sie Ihr Suchwort? Twin; Zwilling; Speech disorder; Speech disorders; Speech disabilities; Speech disability; Speech handicap; Speech handicaps; Speech impairment; Speech impairments; Language handicaps; Sprachbehinderung; Frühe Kindheit; Humangenetik; Ätiologie; Alphabetisierung; Schreib- und Lesefähigkeit; Environmental influence; Umwelteinfluss; Language skill; Sprachkompetenz; Leseprozess; Lesen; Speaking; Sprechen; Kommunikationsstörung
Abstract	The genetic and environmental etiology of speech and broader language skills was examined in terms of their concurrent relationships in young children; their longitudinal association with reading; and the role they play in defining the "heritable phenotype" for specific language impairment (SLI). The work was based on a large sample of 4 1/2-year-old twins, who were assessed at home on a broad range of speech and language measures as part of the Twins Early Development Study. We found that genetic factors strongly influence variation in young children's speech in typical development as well as in SLI, and that these genetic factors also account for much of the relationship between early speech and later reading. In contrast, shared environmental factors play a more dominant role for broader language skills, and in relating these skills to later reading; isolated impairments in language as opposed to speech appear to have largely environmental origins. (Contains 4 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10