NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 2 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Lundstrom, Sebastian; Haworth, Claire M. A.; Carlstrom, Eva; Gillberg, Christopher; Mill, Jonathan; Rastam, Maria; Hultman, Christina M.; Ronald, Angelica; Anckarsater, Henrik; Plomin, Robert; Lichtenstein, Paul; Reichenberg, Abraham – Journal of Child Psychology and Psychiatry, 2010
Background: Despite extensive efforts, the causes of autism remain unknown. Advancing paternal age has been associated with various neurodevelopmental disorders. We aim to investigate three unresolved questions: (a) What is the association between paternal age and autism spectrum disorders (ASD)?; (b) Does paternal age moderate the genetic and…
Descriptors: Twins, Autism, Genetics, Foreign Countries
Peer reviewed Peer reviewed
Direct linkDirect link
Dworzynski, Katharina; Remington, Anna; Rijsdijk, Fruhling; Howell, Peter; Plomin, Robert – American Journal of Speech-Language Pathology, 2007
Purpose: The contribution of genetic factors in the persistence of and early recovery from stuttering was assessed. Method: Data from the Twins Early Development Study were employed. Parental reports regarding stuttering were collected at ages 2, 3, 4, and 7 years, and were used to classify speakers into recovered and persistent groups. Of 12,892…
Descriptors: Twins, Stuttering, Genetics, Etiology