A preliminary investigation of phonetic diversity in adults with motor speech disorder

Document Type

Article

Publication Title

Asia Pacific Journal of Speech, Language, and Hearing

ISSN

1361-3286

Volume

7

Issue

3

DOI

10.1179/136132802805576445

First Page

187

Last Page

196

Publication Date

1-1-2002

Abstract

A preliminary investigation of the phonetic diversity characterizing the speech of non-impaired and speech-impaired adults was performed. Two measures of phonetic diversity, the ratio of consonants-to-vowels (C:V) and the phonetic product (PP), were applied to the spontaneous speech productions of a group of non-impaired adult females and adult females with a motor speech disorder. The C:V ratio evaluates the ratio of supraglottal-to-glottal articulations occurring within a conversational speech sample. The PP evaluates the frequency of occurrence of consonant and vowel sounds within an utterance according to place of articulation categories. Significant differences in C:V ratio were found between the two groups; however, the PP failed to discriminate the groups. Results are discussed with regard to the general articulatory characteristics of non-impaired and speech-impaired adults, as well as the usefulness of examining phonetic diversity in adults with motor speech disorders.

Comments

Journal Title Note: Asia Pacific Journal of Speech, Language and Hearing (ISSN: 1361-3286) from 1996-2012. Currently known as Speech, Language and Hearing (ISSN: 2050-571X).

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