Control of oral closure in lingual stop consonant production
Control of oral closure in lingual stop consonant production
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DOI：
10.1121/1.1473636
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发表时间：
2002-06-01
影响因子：
2.4
通讯作者：
Gracco, VL
中科院分区：
文献类型：
--
作者：
Löfqvist, A;Gracco, VL
先前的研究表明，双唇塞音发生口腔闭合时，嘴唇以高速移动，导致组织压缩和嘴唇之间的机械相互作用。本实验记录了四名受试者在生产软腭和齿槽塞音检查运动学事件之前，期间和之后的停止关闭。结果表明，与嘴唇相似，舌头在闭合开始时通常以高速移动。舌头的运动更为复杂，既有水平分量，也有垂直分量。在关闭和释放的运动速度的影响，由前面和后面的元音。在口腔闭合期间，舌头移动通过通常小于1厘米的轨迹;再次，运动的幅度是上下文相关的。总的来说，舌头在前后弯曲的路径上移动。结果与这样的想法相一致，即只要保持气密密封，舌部在闭合期间就可以自由移动。本文还对舌在言语中的弯曲运动路径提出了新的解释。这种解释是基于成本最小化的原则，已成功地应用于研究的手的动作达到。(C)2002年美国声学学会。
Previous work has shown that the lips are moving at a high velocity when the oral closure occurs for bilabial stop consonants, resulting in tissue compression and mechanical interactions between the lips. The present experiment recorded tongue movements in four subjects during the production of velar and alveolar stop consonants to examine kinematic events before, during, and after the stop closure. The results show that, similar to the lips, the tongue is often moving at a high velocity at the onset of closure. The tongue movements were more complex, with both horizontal and vertical components. Movement velocity at closure and release were influenced by both the preceding and the following vowel. During the period of oral closure, the tongue moved through a trajectory of usually less than I cm; again, the magnitude of the movement was context dependent. Overall, the tongue moved in forward-backward curved paths. The results are compatible with the idea that the tongue is free to move during the closure as long as an airtight seal is maintained. A new interpretation of the curved movement paths of the tongue in speech is also proposed. This interpretation is based on the principle of cost minimization that has been successfully applied in the study of hand movements in reaching. (C) 2002 Acoustical Society of America.