Mahler Leslie A, Ramig Lorraine O
University of Rhode Island, Kingston, RI 02881, USA.
Clin Linguist Phon. 2012 Aug;26(8):681-94. doi: 10.3109/02699206.2012.696173.
This study investigated the impact of a well-defined behavioral dysarthria treatment on acoustic and perceptual measures of speech in four adults with dysarthria secondary to stroke. A single-subject A-B-A experimental design was used to measure the effects of the Lee Silverman Voice Treatment (LSVT(®) LOUD) on the speech of individual participants. Dependent measures included vocal sound pressure level, phonatory stability, vowel space area, and listener ratings of speech, voice and intelligibility. Statistically significant improvements (p < 0.05) in vocal dB SPL and phonatory stability as well as larger vowel space area were present for all participants. Listener ratings suggested improved voice quality and more natural speech post-treatment. Speech intelligibility scores improved for one of four participants. These data suggest that people with dysarthria secondary to stroke can respond positively to intensive speech treatments such as LSVT. Further studies are needed to investigate speech treatments specific to stroke.
本研究调查了一种明确的行为性构音障碍治疗方法对四名中风继发构音障碍成年人语音的声学和感知指标的影响。采用单受试者A - B - A实验设计来测量李·西尔弗曼嗓音治疗法（LSVT(®) LOUD）对个体参与者语音的影响。相关测量指标包括嗓音声压级、发声稳定性、元音空间面积以及听众对语音、嗓音和可懂度的评分。所有参与者的嗓音声压级分贝数、发声稳定性以及元音空间面积均有统计学意义上的显著改善（p < 0.05）。听众评分表明治疗后嗓音质量有所改善，语音更自然。四名参与者中有一名的言语可懂度得分有所提高。这些数据表明，中风继发构音障碍的患者能够对诸如LSVT这样的强化言语治疗产生积极反应。需要进一步开展研究来探究针对中风的特异性言语治疗方法。
