Wenke Rachel J, Cornwell Petrea, Theodoros Deborah G
The University of Queensland, Brisbane, Australia.
Int J Speech Lang Pathol. 2010 Jun;12(3):203-20. doi: 10.3109/17549500903568468.
The present study aimed to evaluate the effects of the Lee Silverman Voice Treatment (LSVT(R)) on acoustic and perceptual measures of articulation in non-progressive dysarthria in comparison to traditional dysarthria therapy. The study involved 26 individuals with non-progressive dysarthria who were randomly allocated to receive either LSVT(R) or traditional dysarthria therapy (TRAD), both of which were administered for 16 hourly sessions over 4 weeks. Participants' speech samples were collected over a total of six testing sessions during three assessment phases: (1) prior to treatment, (2) immediately post-treatment, and (3) 6 months post-treatment (FU). Speech samples were analysed perceptually to determine articulatory precision and intelligibility as well as acoustically using vowel space (and vowel formant measures) and first moment differences. Results revealed short and long-term significant increases in vowel space area following LSVT(R). Significantly increased intelligibility was also found at FU in the LSVT(R) group. No significant differences between groups for any variables were found. The study reveals that LSVT(R) may be a suitable treatment option for improving vowel articulation and subsequent intelligibility in some individuals with non-progressive dysarthria.
本研究旨在评估李·西尔弗曼嗓音治疗法（LSVT®）相较于传统构音障碍疗法，对非进行性构音障碍患者发音的声学和感知指标的影响。该研究纳入了26名非进行性构音障碍患者，他们被随机分配接受LSVT®或传统构音障碍疗法（TRAD），两种疗法均在4周内进行16次每小时一次的治疗。在三个评估阶段的总共六次测试中收集参与者的语音样本：（1）治疗前，（2）治疗后立即，以及（3）治疗后6个月（随访）。对语音样本进行感知分析以确定发音准确性和可懂度，并使用元音空间（和元音共振峰测量）以及一阶矩差异进行声学分析。结果显示，LSVT®治疗后元音空间面积有短期和长期的显著增加。在随访时，LSVT®组的可懂度也显著提高。两组之间在任何变量上均未发现显著差异。该研究表明，LSVT®可能是改善一些非进行性构音障碍患者元音发音及后续可懂度的合适治疗选择。
