A preliminary investigation of phonetic diversity in adults with motor speech disorder
Asia Pacific Journal of Speech, Language, and Hearing
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.
Robb, Michael P. and Boles, Larry, "A preliminary investigation of phonetic diversity in adults with motor speech disorder" (2002). School of Pharmacy and Health Sciences Faculty Articles. 168.