Indirect genetic effects and the early language development of children with genetic mental retardation syndromes: The role of joint attention

Melissa M. Murphy, Leonard J Abbeduto

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Mental retardation is typically associated with substantial delays in language. Researchers have been interested in the possible differences in the extent or nature of these delays across genetic syndromes, such as fragile X, Down, and Williams syndromes. This article addresses how genetic factors and environmental characteristics interact to produce specific language outcomes. We suggest that episodes of joint attention provide a means by which genetic anomalies can have indirect effects on some facets of language development. In doing so, we explain the nature of indirect effects and their influence on development; illustrate the link between joint attention and later language ability; discuss how joint attention may account for the characteristics associated with genetic syndromes, with special attention on fragile X syndrome; and consider implications for intervention.

Original languageEnglish (US)
Pages (from-to)47-59
Number of pages13
JournalInfants and Young Children
Volume18
Issue number1
StatePublished - Jan 2005
Externally publishedYes

Fingerprint

Language Development
Intellectual Disability
Fragile X Syndrome
Language
language
Williams Syndrome
Language Development Disorders
Aptitude
Down Syndrome
heredity
Research Personnel
ability

Keywords

  • Fragile x syndrome
  • Genetics
  • Indirect effects
  • Joint attention
  • Language development

ASJC Scopus subject areas

  • Rehabilitation
  • Health Professions(all)
  • Education
  • Developmental and Educational Psychology

Cite this

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AB - Mental retardation is typically associated with substantial delays in language. Researchers have been interested in the possible differences in the extent or nature of these delays across genetic syndromes, such as fragile X, Down, and Williams syndromes. This article addresses how genetic factors and environmental characteristics interact to produce specific language outcomes. We suggest that episodes of joint attention provide a means by which genetic anomalies can have indirect effects on some facets of language development. In doing so, we explain the nature of indirect effects and their influence on development; illustrate the link between joint attention and later language ability; discuss how joint attention may account for the characteristics associated with genetic syndromes, with special attention on fragile X syndrome; and consider implications for intervention.

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