Articulatory changes in muscle tension dysphonia: Evidence of vowel space expansion following manual circumlaryngeal therapy
Articulatory changes in muscle tension dysphonia: Evidence of vowel space expansion following manual circumlaryngeal therapy
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DOI：
10.1016/j.jcomdis.2008.10.001
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发表时间：
2009-03-01
影响因子：
1.7
通讯作者：
Sapir, Shimon
中科院分区：
文献类型：
--
作者：
Roy, Nelson;Nissen, Shawn L.;Sapir, Shimon
在一项初步研究中，我们记录了与肌张力性发声障碍 (MTD) 的成功手动环喉治疗 (MCT) 相关的知情者转换的显着变化，表明言语清晰度有所改善。本研究通过额外的元音声学测量进一步探讨了 MTD 对元音发音的影响。使用两种测量方法对 111 名 MTD 女性治疗前和治疗后的录音进行声学分析：元音空间面积 (VSA) 和元音发音指数 (VAI)，使用从标准阅读段落中的八个单词中提取的 4 点元音 / a、i、ae、u/ 的第一 (F1) 和第二 (F2) 共振峰构建。配对 t 检验显示 VSA 和 VAI 均显着增加，证实 MTD 的成功治疗与元音空间扩张相关。尽管 MTD 被认为是一种声音障碍，但 MCT 治疗似乎对声道动态产生积极影响。虽然元音空间扩张的精确机制仍不清楚，但改善可能与降低喉部、扩大口咽空间和改善发音运动有关。 学习成果：读者将能够：（1）描述与成功治疗肌张力发声困难相关的可能的发音变化； (2) 描述两种评估元音集中和分散的声学方法； (3) 了解将肌张力性发声困难视为一种不仅仅局限于喉部的疾病的基础。 (c) 2008 Elsevier Inc. 保留所有权利。
In a preliminary study, we documented significant changes informant transitions associated with successful manual circumlaryngeal treatment (MCT) of muscle tension dysphonia (MTD), suggesting improvement in speech articulation. The present study explores further the effects of MTD on vowel articulation by means of additional vowel acoustic measures. Pre- and post-treatment audio recordings of 111 women with MTD were analyzed acoustically using two measures: vowel space area (VSA) and vowel articulation index (VAI), constructed using the first (F1) and second (F2) formants of 4 point vowels/ a, i, ae, u/, extracted from eight words within a standard reading passage. Pairwise t-tests revealed significant increases in both VSA and VAI, confirming that successful treatment of MTD is associated with vowel space expansion. Although MTD is considered a voice disorder, its treatment with MCT appears to positively affect vocal tract dynamics. While the precise mechanism underlying vowel space expansion remains unknown, improvements may be related to lowering of the larynx, expanding oropharyngeal space, and improving articulatory movements.Learning outcomes: The reader will be able to: (1) describe possible articulatory changes associated with successful treatment of muscle tension dysphonia; (2) describe two acoustic methods to assess vowel centralization and decentralization, and; (3) understand the basis for viewing muscle tension dysphonia as a disorder not solely confined to the larynx. (c) 2008 Elsevier Inc. All rights reserved.