Relationship between jaw stiffness and kinematic variability in speech.
Relationship between jaw stiffness and kinematic variability in speech.
复制标题
下颌僵硬与言语运动变异之间的关系。
DOI：
10.1152/jn.00286.2002
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Ostry,DavidJ
中科院分区：
文献类型：
--
作者：
Shiller,DouglasM;Laboissiere,Rafael;Ostry,DavidJ
人类通过控制复杂的生物力学装置来产生语音，以获得所需的语音。我们在这里表明，运动变异性的讲话可能会受到影响的模式，下颌僵硬。使用机器人器械对钳口施加机械扰动，以量化其在正中矢状面的刚度。测量的钳口刚度是各向异性的。刚度是最大的沿着一个伸缩轴和最小的方向上的下巴提高和降低。与语音运动反映下颌刚度的方向不对称的想法一致，在语音生产过程中的运动学变异性被发现是高的方向，其中刚度低，反之亦然。此外，对于较高的下巴海拔，刚度更大，运动学变异性less.The观察到的模式的运动学变异性并不特定于语音类似的模式出现在语音和非语音运动。刚度的经验模式被复制通过使用一个基于生理学的模型的下巴。模拟研究支持的想法，颌刚度的模式是受肌肉骨骼几何形状和肌肉力量生成能力与颌几何形状的刚度椭圆的方向的主要决定因素。
Humans produce speech by controlling a complex biomechanical apparatus to achieve desired speech sounds. We show here that kinematic variability in speech may be influenced by patterns of jaw stiffness. A robotic device was used to deliver mechanical perturbations to the jaw to quantify its stiffness in the mid-sagittal plane. Measured jaw stiffness was anisotropic. Stiffness was greatest along a protrusion-retraction axis and least in the direction of jaw raising and lowering. Consistent with the idea that speech movements reflect directional asymmetries in jaw stiffness, kinematic variability during speech production was found to be high in directions in which stiffness is low and vice versa. In addition, for higher jaw elevations, stiffness was greater and kinematic variability was less. The observed patterns of kinematic variability were not specific to speech—similar patterns appeared in speech and nonspeech movements. The empirical patterns of stiffness were replicated by using a physiologically based model of the jaw. The simulation studies support the idea that the pattern of jaw stiffness is affected by musculo-skeletal geometry and muscle-force-generating abilities with jaw geometry being the primary determinant of the orientation of the stiffness ellipse.
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影响因子：
1.9
作者：
FLASH, T
通讯作者：
FLASH, T
DOI：
10.1177/10454411940050010301
发表时间：
1994-01-01
期刊：
CRITICAL REVIEWS IN ORAL BIOLOGY & MEDICINE
影响因子：
--
作者：
HANNAM, AG;MCMILLAN, AS
通讯作者：
MCMILLAN, AS
人类节律开闭运动各个阶段下颌牵张反射敏感性的调节
DOI：
--
发表时间：
1997
期刊：
Journal of dentistry research
影响因子：
--
作者：
A. van der Bilt;Ea.M. Ottenhoff;H. W. van der Glas;F. Bosman;J. Abbink
通讯作者：
J. Abbink
DOI：
--
发表时间：
1987
期刊：
The Journal of prosthetic dentistry (Print)
影响因子：
--
作者：
W. W. Wood
通讯作者：
W. W. Wood
学习和使用具体实例
影响因子：
1.9
作者：
D. Volper;S. Hampson
通讯作者：
S. Hampson