Title

Voice onset time production in older and younger female monozygotic twins

Authors

Authors

J. Ryalls; H. Shaw;M. Simon

Comments

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Abbreviated Journal Title

Folia Phoniatr. Logop.

Keywords

monozygotic twins; speech; voice onset time; source characteristics; filter characteristics; Audiology & Speech-Language Pathology; Otorhinolaryngology; Rehabilitation

Abstract

A comparison of voice onset time (VOT) production in younger and older female monozygotic twins revealed greater similarity for the younger than the older female twin pairs. Based on findings from this study and a review of previous twin literature, it is hypothesized that 'source' characteristics of speech ( voice properties) are under more constraints by genetics, while 'filter' characteristics of speech (VOT, formant frequencies) are freer to diverge due to environmental factors such as different linguistic environments. Since the older twins separated to two distinct linguistic areas of the United States at the age of 25 years, while the 2 younger twins continue to share domicile at 21 years, the findings of this study appear to support this preliminary hypothesis. Copyright (C) 2004 S. Karger AG, Basel.

Journal Title

Folia Phoniatrica Et Logopaedica

Volume

56

Issue/Number

3

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

165

Last Page

169

WOS Identifier

WOS:000220854700004

ISSN

1021-7762

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