Electropalatographic study of connected speech in lateral misarticulation
Electropalatographic study of connected speech in lateral misarticulation
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DOI：
10.1002/osi2.1148
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发表时间：
2022-06-11
影响因子：
0.5
通讯作者：
Takahashi，Koji
中科院分区：
文献类型：
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作者：
Takei，Yoshiko;Yamashita，Yukari;Takahashi，Koji
横向发音错误（LM）是一种语音障碍，其中空气在讲话期间横向逸出。在LM言语治疗中，即使正确地产生单个音节，错误也经常保留在会话言语中。然而，以前的研究都是使用音节，单词和短语作为语音样本，并没有分析会话语音。在这项研究中，电腭描记术（EPG）被用来观察舌腭接触模式，在一个句子，这是类似于会话语音，从而澄清LM在连接speech.MethodsThe参与者包括30例LM和10个典型的扬声器的发音动力学。舌腭接触模式与语音同步记录。通过在句子产生过程中积累所有EPG模式，为每个参与者创建了一个全局模式（GP）。接触率的累积全球模式（CGP）为每个group.ResultsThe GP为每个参与者显示，典型的扬声器显示连续接触在双边后外侧区域和较少的接触在中央区域，而LM患者表现出较少的接触在后外侧区域和更多的接触在中央区域。每个组的CGP表明，LM组往往有一个较低的接触率在后外侧区域和一个较高的接触率在前中央区域比典型group.ConclusionLateral支具在后外侧区域和凹槽形成在中央区域是重要的LM患者一致地产生正确的声音在连接的语音。
AimLateral misarticulation (LM) is a speech sound disorder in which air escapes laterally during speech. In LM speech therapy, errors often remain in conversational speech, even when single syllables are produced correctly. However, previous studies have used syllables, words, and phrases as speech samples and have not analyzed conversational speech. In this study, electropalatography (EPG) was used to observe tongue–palate contact patterns in a sentence that is similar to conversational speech and thereby clarify the articulatory dynamics of LM in connected speech.MethodsThe participants included 30 patients with LM and 10 typical speakers. Tongue–palate contact patterns were recorded simultaneously with speech sounds. A global pattern (GP) for each participant was created by accumulating all the EPG patterns during the sentence production. The contact rates of cumulative global patterns (CGP) for each group were examined.ResultsThe GP for each participant revealed that typical speakers displayed continuous contact in the bilateral posterolateral region and less contact in the central region, whereas patients with LM exhibited less contact in the posterolateral region and more contact in the central region. The CGP for each group indicated that the LM group tended to have a lower contact rate in the posterolateral region and a higher contact rate in the anterior‐central region than the typical group.ConclusionLateral bracing in the posterolateral region and groove formation in the central region are important for patients with LM to consistently produce correct sounds in connected speech.