Departamento Psicología Básica II, Facultad de Psicología, Universidad Complutense Madrid, Spain.
Span J Psychol. 2012 Jul;15(2):495-504. doi: 10.5209/rev_sjop.2012.v15.n2.38860.
Acoustic analysis provides objective quantitative measures of speech that enable a comprehensive and accurate understanding of motor disorders and complement the traditional measures. This paper aims to distinguish between normal and pathological speech, more specifically between apraxia of speech and spastic dysarthria in native Spanish speaking patients using acoustic parameters. Participants (4 aphasic with apraxia of speech, 4 with spastic dysarthria, and 15 without speech disorders) performed three different tasks: repeating the syllable sequence [pa-ta-ka], repeating the isolated syllable [pa] and repeating the vowel sequence [i-u]. The results showed that the normative values of motor control, in general, coincide with those obtained in previous research on native English speakers. They also show that damage to motor control processes results in a decrease in the rate of alternating and sequential movements and an increase in the inter-syllabic time for both types of movements. A subset of the acoustic parameters analyzed, those that measure motor planning processes, enable differentiation between normal population and apraxic and dysarthric patients, and between the latter. The differences between the pathological groups support the distinction between motor planning and motor programming as described by van der Merwe's model of sensorimotor processing (1997).
声学分析提供了言语的客观定量测量，有助于全面准确地了解运动障碍，并补充传统的测量方法。本文旨在使用声学参数区分正常和病理言语，更具体地说是区分母语为西班牙语的患者的言语失用症和痉挛性构音障碍。参与者（4 名言语失用症患者、4 名痉挛性构音障碍患者和 15 名无言语障碍患者）完成了三个不同的任务：重复音节序列[pa-ta-ka]、重复孤立音节[pa]和重复元音序列[i-u]。结果表明，运动控制的规范值通常与先前对以英语为母语的人的研究中获得的值一致。它们还表明，运动控制过程的损伤导致交替和连续运动的速度降低，以及两种运动的音节间时间增加。分析的一组声学参数，那些测量运动规划过程的参数，能够区分正常人群和失用症和构音障碍患者，以及后者。病理组之间的差异支持 van der Merwe 的感觉运动处理模型（1997 年）中描述的运动规划和运动编程之间的区别。
