Anatomic development of the oral and pharyngeal portions of the vocal tract: an imaging study.
Anatomic development of the oral and pharyngeal portions of the vocal tract: an imaging study.
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DOI：
10.1121/1.3075589
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发表时间：
2009-03
期刊：
影响因子：
--
通讯作者：
Gentry LR
中科院分区：
文献类型：
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作者：
Vorperian HK;Wang S;Chung MK;Schimek EM;Durtschi RB;Kent RD;Ziegert AJ;Gentry LR
众所周知，声道（VT）的生长是不均匀的，因为解剖成熟度存在区域差异。本研究提供了 VT 口腔和咽部生长的定量解剖数据，这些数据来自 605 项针对出生至 19 岁个体的影像学研究。 VT 的口腔（水平）部分分为唇厚、前腔长度、口咽宽度和口腔 VT； VT 的咽（垂直）部分分为后腔长度和鼻咽长度。分析数据以确定生长趋势、生长速率和生长类型（神经或体细胞）。研究结果表明，所分析的节段/变量的增长趋势存在差异，除前腔长度外，所有变量均存在显着的性别差异。虽然某些变量的增长趋势显示了特定年龄范围内青春期前的性别差异，但这种局部差异的重要性似乎被男性和女性之间的总体增长率差异所掩盖。最后，生长曲线类型的评估表明，大多数 VT 结构遵循组合/混合（体细胞和神经）生长曲线，垂直平面中的结构具有主要的体细胞生长模式。这些关于声道生长不均匀的数据揭示了解剖学差异，这些差异导致了青春期前言语产生中记录的声学差异。
The growth of the vocal tract (VT) is known to be non-uniform insofar as there are regional differences in anatomic maturation. This study presents quantitative anatomic data on the growth of the oral and pharyngeal portions of the VT from 605 imaging studies for individuals between birth and 19 years. The oral (horizontal) portion of the VT was segmented into lip-thickness, anterior-cavity-length, oropharyngeal-width, and VT-oral; and the pharyngeal (vertical) portion of the VT into posterior-cavity-length, and nasopharyngeal-length. The data were analyzed to determine growth trend, growth rate and growth type (neural or somatic). Findings indicate differences in the growth trend of segments/variables analyzed, with significant sex differences for all variables except anterior-cavity-length. While the growth trend of some variables display prepubertal sex differences at specific age ranges, the importance of such localized differences appears to be masked by overall growth rate differences between males and females. Finally, assessment of growth curve type indicates that most VT structures follow a combined/hybrid (somatic and neural) growth curve with structures in the vertical plane having a predoMinantly somatic growth pattern. these data on the non-uniform growth of the vocal tract reveal anatomic differences that contribute to documented acoustic differences in prepubertal speech production.