Genetic and Environmental Mediation of the Relationship Between Language and Nonverbal Impairment in 4-Year-Old Twins

Viding, Essi; Price, Thomas S.; Spinath, Frank M.; Dorothy V. M., Bishop; Dale, Philip S.; Plomin, Robert
December 2003
Journal of Speech, Language & Hearing Research;Dec2003, Vol. 46 Issue 6, p1271
Academic Journal
This study of 4-year-old twins investigated the genetic and environmental origins of comorbidity between language impairment and nonverbal ability by testing the extent to which language impairment in one twin predicted nonverbal ability in the co-twin. Impairment of language ability was defined as scores below the 15th percentile on a general language scale derived from a battery of diverse language tests. Four hundred thirty-six children, members of 160 monozygotic (MZ) and 131 same-sex dizygotic (DZ) twin pairs, were identified as language impaired. Language-impaired probands also suffered significant impairments in nonverbal ability. DeFries-Fulker extremes analysis showed evidence for substantial genetic mediation of the phenotypic relationship between language impairment and poor nonverbal ability in that language problems in one twin predicted poor nonverbal ability in the co-twin, much more so for MZ twins than for DZ twins. This finding held even when we excluded those children with language impairment whose nonverbal score indicated general cognitive delay. These results point to a general genetic factor that includes both language and nonverbal problems.


Related Articles

  • The development of narrative competence in the L1 and L2 of Spanish-English bilingual children.  // International Journal of Bilingualism;Dec2004, Vol. 8 Issue 4, p449 

    The present paper examines the development of narrative competence in the two languages of three Spanish-English bilingual children with different proficiency levels in each language. The children's narratives, elicited at two different times over a six-month span, are examined in terms of the...

  • ON WORD-INITIAL VOICING: CONVERGING SOURCES OF EVIDENCE IN PHONOLOGICALLY DISORDERED SPEECH. Gierut, Judith A.; Dinnsen, Daniel A. // Language & Speech;Apr-Jun86, Vol. 29 Issue 2, p97 

    Examines the implications for the clinical assessment and treatment of children with phonological disordered speech. Characteristics of two children's disordered phonological systems; Ability to produce systematic phonetic distinctions among sounds for the purpose of marking phonological...

  • Facilitating the Speech Impaired Child's Oral Communication Skill through Partnerships. Oden, Sarah Nicholas; Nta, Eno Grace; Ntukidem, Eno P. // British Journal of Arts & Social Sciences;2012, Vol. 4 Issue 3, p84 

    Speech as part of language involves verbal communication. Language, as we all know is a tool for social cohesion, so when speech is impaired communication is defective. Individuals are able to share ideas through the use of language, which could be oral or written. The speech-impaired child is...

  • DESCRIPTION OF CHILD WITH ALALIA. Stojmenovska, Mare; Filipova, Silvana // Journal of Special Education & Rehabilitation;2005, Issue 3/4, p89 

    Alalia is a condition of completely undeveloped speech in children that have kept hearing, but they are not in a condition to understand language message, because they have bad perception caused by disorders and dysfunction of CNS on level of auditory representative cortical area. Therefore, it...

  • Functional communication skills of children with speech difficulties: Performance on Bishop's Children's Communication Checklist. Nathan, Liz // Child Language Teaching & Therapy;Oct2002, Vol. 18 Issue 3, p213 

    This paper examines the functional communication skills of a group of children with speech difficulties. Using the Children’s Communication Checklist (CCC) (Bishop, 1998), the effects of a significant speech difficulty on wider social communication were measured and compared to a control...

  • Semantic Deficits in Children With Language Impairments: Issues for Clinical Assessment. Brackenbury, Tim; Pye, Clifton // Language, Speech & Hearing Services in Schools;Jan2005, Vol. 36 Issue 1, p5 

    Children with language impairments demonstrate a broad range of semantic difficulties, including problems with new word acquisition, storage and organization of known words, and lexical access/ retrieval. Unfortunately, assessments of children's semantic skills are often limited to measures of...

  • The Diagnostic and Predictive Validity of The Renfrew Bus Story. Pankratz, Mary E.; Plante, Elena; Vance, Rebecca; Insalaco, Deborah M. // Language, Speech & Hearing Services in Schools;Oct2007, Vol. 38 Issue 4, p390 

    Purpose: Two studies are presented providing evidence indicating the diagnostic and predictive validity of the American version of The Renfrew Bus Story (J. Cowley & C. Glasgow, 1994). Method: Thirty-two children with specific language impairment (SLI) and 32 children with typical language...

  • Classification of Children With Specific Language Impairment: Longitudinal Considerations. Conti-Ramsden, Gina; Botting, Nicola // Journal of Speech, Language & Hearing Research;Oct1999, Vol. 42 Issue 5, p1195 

    Presents information on a study which investigated the longitudinal results of a large project involving children attending language units in England. Examination on the stability of the subgroups of children with specific language impairment already identified; Methodology of the study;...

  • Verbal Expression and Comprehension Deficits in Young Children With Autism. Agnes S. Chan; Jasmine Cheung; Winnie W. M. Leung; Rebecca Cheung; Mei-chun Cheung // Focus on Autism & Other Developmental Disabilities;Summer2005, Vol. 20 Issue 2, p117 

    Language impairment is a primary characteristic of children with autism; however, findings on the language deficits of these children have been inconclusive, and even less is known about the language profiles of Chinese-speaking children with autism. The present study examined the verbal...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics