TITLE

Bivariate Genetic Analyses of Stuttering and Nonfluency in a Large Sample of 5-Year-Old Twins

AUTHOR(S)
van Beijsterveldt, Catharina Eugenie Maria; Felsenfeld, Susan; Boomsma, Dorret Irene
PUB. DATE
June 2010
SOURCE
Journal of Speech, Language & Hearing Research;Jun2010, Vol. 53 Issue 3, p609
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: Behavioral genetic studies of speech fluency have focused on participants who present with clinical stuttering. Knowledge about genetic influences on the development and regulation of normal speech fluency is limited. The primary aims of this study were to identify the heritability of stuttering and high nonfluency and to assess the relative contribution of genetic and environmental factors to the correlation between these 2 fluency phenotypes. Method: Information on 6 specific speech fluency behaviors was obtained by maternal report for over 10,500 5-year-old Dutch twin pairs. Results: Genetic analyses revealed that both fluency phenotypes were moderately heritable, with heritability estimates of 42% and 45% for probable stuttering and high nonfluency, respectively. Shared environmental factors were also significant, explaining 44% of the individual differences in probable stuttering and 32% in nonfluency. For both phenotypes, the magnitude of the genetic and environmental influences did not differ between boys and girls. The overlap between the 2 traits was substantial (tetrachoric correlation was .72). A bivariate genetic analysis showed that this overlap was due to both overlapping genetic and environmental influences. Conclusions: These findings provide a foundation to justify further studies in normal fluency control, a scientific area that has received little cross-disciplinary attention.
ACCESSION #
51406269

 

Related Articles

  • The Kids' Speech.  // Working Mother;Jun/Jul2011, Vol. 34 Issue 5, p93 

    The article offers tips on how to help kids from stuttering through speaking slowly, keeping questions simple, and listening to children with patience.

  • A control/experimental trial of an operant treatment for early stuttering. Onslow, Mark; Andrews, Cheryl // Journal of Speech & Hearing Research;Dec94, Vol. 37 Issue 6, p1244 

    Presents a study designed to replicate and expand the findings of M. Onslow, L. Costa and S. Rue in 1990 on verbal response-contingent stimulation (RCS) as an effective treatment for stuttering in children younger than 5 years. Treatment program; Outcome measures; Measurement reliability.

  • Linguistic Development in Stuttering Children. Pamplona, M.; Ysunza, A.; Gonz├ílez, F. // Open Otorhinolaryngology Journal;2008, Vol. 2, p1 

    Normal fluency errors usually appear during language development, especially during the transition between the stages of one-word and simple phrases. In cases of stuttering the speaker produces several involuntary repetitions of phonemes, syllables, or words. The speaker can also show phoneme...

  • Comparisons of Audio and Audiovisual Measures of Stuttering Frequency and Severity in Preschool-Age Children. Rousseau, Isabelle; Onslow, Mark; Packman, Ann; Jones, Mark // American Journal of Speech-Language Pathology;May2008, Vol. 17 Issue 2, p173 

    Purpose: To determine whether measures of stuttering frequency and measures of overall stuttering severity in preschoolers differ when made from audio-only recordings compared with audiovisual recordings. Method: Four blinded speech-language pathologists who had extensive experience with...

  • Early Childhood Stuttering II: Initial Status of Phonological Abilities. Paden, Elaine Pagel; Yairi, Ehud // Journal of Speech, Language & Hearing Research;Oct1999, Vol. 42 Issue 5, p1113 

    Provides information on a study which investigated the differences in the phonological development between groups of children in the United States. Persistence of stuttering on some children; Recovery of some children; Phonological evaluation; Methodology of the study; Results and discussions...

  • Genetic aspects of early childhood stuttering. Ambrose, Nicoline Grinag; Yairi, Ehud // Journal of Speech & Hearing Research;Aug93, Vol. 36 Issue 4, p701 

    Quantifies the frequency of stuttering in relatives of pre-school-age children who stutter and who were first seen close to the onset of the disorder. Proportion of probands with a positive family history; Examination of familial incidence of stuttering; Segregation analyses.

  • Temporal dynamics of repetitions during the early stage of childhood stuttering: An acoustic study. Nierman, Rebecca; Yairi, Ehud // Journal of Speech & Hearing Research;Oct94, Vol. 37 Issue 5, p1067 

    Discusses an acoustic study on temporal dynamics of repetitions during the early stage of childhood stuttering. Comparison of the duration characteristics of single-syllable whole-word repetitions and part-word repetitions; Identification of displaced episodes; Overall tendency for repetitions...

  • The stuttering child: A guide.  // Nutrition Health Review: The Consumer's Medical Journal;Spring90, Issue 54, p9 

    Focuses on child stuttering, a fluency irregularity that children experience in early speech development. Factors which cause stuttering in children; Benefits of positive verbal responses; Tips on how to encourage fluent speech development; Effect of ignoring stuttering in children.

  • Language production abilities of children whose stuttering persisted or recovered. Watkins, Ruth V.; Yairi, Ehud // Journal of Speech, Language & Hearing Research;Apr1997, Vol. 40 Issue 2, p385 

    Evaluates the language production capabilities of young children whose stuttering persisted or recovered. Language proficiency; Indices of production obtained from spontaneous language samples; Suggestion that examination of individual patterns of performance is necessary in clarifying the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics