•  
  •  
 

Rehabilitation Practice and Science

Translated Title

正常發展兒童之說話動作控制分析：初步報告

Abstract

Speech is a complex motor skill. It requires the coordination of articulatory and phonation systems, including the chest wall, larynx and oral system, to produce precise oral motor control. Treatment of motor speech dysfunction is based on understanding the mechanism underlying normal speech development and motor control. The purpose of this study is to establish speech motor control patterns in children with normal development (ND) by kinematic analysis.Twenty-eight children with ND (16 males and 12 females) aged 4 to 12 years participated in this study. The children were split into three groups based on age: group A aged 4 to 6 years, group B aged 7 to 9 years, and group C aged 10 to 12 years. Each subject received two experimental multiple and monosyllable tasks. The kinematic parameters analyzed included spatiotemporal indexes (STI), duration and peak displacement of the lower lip. ANOVA and Pearson correlation analysis were used for statistical analysis. Statistical significance was set as p being less than 0.05. The STI and duration of multiple syllable tasks decreased with age (p＜0.05) in children with ND. In mono-syllable tasks, the duration also decreased with age (p＜0.05) but the STI did not change. The peak displacement of the lower lip did not change with age for either multiple and mono-syllable tasks. Considering the correlation analysis of kinematic data, the STI was negatively correlated with age (r=-0.663, p＜0.001) and was positively correlated with duration (r = -0.483, p＜0.001) for multiple syllable tasks. The duration was negatively correlated with age (r=-0.630, p＜0.001) for both multiple and mono-syllable tasks in children with ND. The peak displacement of the lower lip had a positive relationship with STI (r=0.767, p＜0.001) for mono-syllable tasks. In conclusion, speech motor control matured with age in children with ND. Speech motor patterns and characteristics varied with age due to the different speech strategies being used amongst children. Oromotor variability and duration decreased with age. The data collected in this study allowed us to understand speech oromotor control patterns in children with ND. Further, the kinematic analysis technique may be used to assess speech motor control in children with speech impairment.

Language

Traditional Chinese

First Page

89

Last Page

96

Download

Share

COinS