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1.
J Speech Lang Hear Res ; 49(5): 1147-55, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17077221

RESUMO

PURPOSE: Increased speaking rate is a commonly reported perceptual characteristic among males with fragile X syndrome (FXS). The objective of this preliminary study was to determine articulation rate-one component of perceived speaking rate-and vowel space characteristics of young males with FXS. METHOD: Young males with FXS (n = 38), developmental age (DA)-matched males (n = 21), and chronological age (CA)-matched males (n = 16) were audiotaped while engaged in spontaneous conversation and a picture-naming task. Articulation rate in syllables per second during intelligible utterances and vowel space area/dispersion measures were acoustically determined for each speaker. RESULTS: Males with FXS did not articulate significantly faster than CA-matched males. Area and dispersion of the acoustic vowel space also were similar between the 2 groups. Males with FXS, however, used significantly shorter utterances and had a tendency to pause less often than CA-matched males. In addition, males with FXS exhibited greater intraspeaker variability of formants associated with the vowel /a/. CONCLUSIONS: These preliminary findings suggest that articulation rate may not be a primary factor contributing to perceived speaking rate of males with FXS. Limitations of the study relative to speech production tasks and utterance intelligibility are discussed.


Assuntos
Síndrome do Cromossomo X Frágil/fisiopatologia , Fonética , Acústica da Fala , Distúrbios da Fala/fisiopatologia , Adolescente , Estudos de Casos e Controles , Criança , Pré-Escolar , Síndrome do Cromossomo X Frágil/complicações , Humanos , Masculino , Análise Multivariada , Distúrbios da Fala/etiologia , Inteligibilidade da Fala , Medida da Produção da Fala , Gravação em Fita
2.
J Speech Lang Hear Res ; 49(4): 903-17, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16908884

RESUMO

This study compared the oral structure and oral-motor skills of 59 boys with fragile X syndrome (FXS), 34 boys with Down syndrome (DS), and 36 developmentally similar typically developing (TD) boys. An adaptation of the J. Robbins and T. Klee (1987) Oral Speech Motor Protocol was administered to participants and their scores on measures of oral structure and accuracy on speech motor and oral-motor tasks were analyzed. Boys with FXS scored lower than TD boys on oral structure, most oral function tasks, and all speech function tasks. Boys with DS scored lower than boys with FXS and TD boys on oral structure, and lower than TD boys on 1 oral function task and all speech function tasks. Boys with FXS and TD boys scored higher on speech function than oral function tasks, while boys with DS scored higher on oral function than speech function tasks. Boys with FXS and boys with DS repeated single syllable words with greater accuracy than multiple syllable words, while the TD boys produced both types of words with equal accuracy. These results suggest that boys with FXS and boys with DS exhibit atypical oral structure and motor function, yet differ in specific oral-motor patterns.


Assuntos
Transtornos da Articulação/fisiopatologia , Síndrome de Down/fisiopatologia , Síndrome do Cromossomo X Frágil/fisiopatologia , Fonação/fisiologia , Fonética , Sistema Estomatognático/patologia , Adolescente , Transtornos da Articulação/etiologia , Transtornos da Articulação/patologia , Estudos de Casos e Controles , Criança , Pré-Escolar , Síndrome de Down/complicações , Síndrome de Down/patologia , Síndrome do Cromossomo X Frágil/complicações , Síndrome do Cromossomo X Frágil/patologia , Humanos , Masculino , Medida da Produção da Fala
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