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The Language Phenotype of Children and Adolescents with Noonan Syndrome
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Pierpont, Elizabeth I.; Weismer, Susan Ellis; Roberts, Amy E.; Tworog-Dube, Erica; Pierpont, Mary Ella; Mendelsohn, Nancy J.; Seidenberg, Mark S. – Journal of Speech, Language, and Hearing Research, 2010
Purpose: This study presents an analysis of language skills in individuals with Noonan syndrome (NS), an autosomal dominant genetic disorder. We investigated whether the language impairments affecting some individuals arise from deficits specifically within the linguistic system or whether they are associated with cognitive, perceptual, and motor…
Descriptors: Genetic Disorders, Congenital Impairments, Children, Adolescents
Literacy Outcomes of Children with Early Childhood Speech Sound Disorders: Impact of Endophenotypes
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Lewis, Barbara A.; Avrich, Allison A.; Freebairn, Lisa A.; Hansen, Amy J.; Sucheston, Lara E.; Kuo, Iris; Taylor, H. Gerry; Iyengar, Sudha K.; Stein, Catherine M. – Journal of Speech, Language, and Hearing Research, 2011
Purpose: To demonstrate that early childhood speech sound disorders (SSD) and later school-age reading, written expression, and spelling skills are influenced by shared endophenotypes that may be in part genetic. Method: Children with SSD and their siblings were assessed at early childhood (ages 4-6 years) and followed at school age (7-12 years).…
Descriptors: Spelling, Articulation (Speech), Structural Equation Models, Oral Language