Organization of tongue articulation for vowels
Organization of tongue articulation for vowels
复制标题
元音舌头发音的组织
DOI：
10.1006/jpho.1996.0004
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发表时间：
1996
影响因子：
1.9
通讯作者：
K. Honda
中科院分区：
文献类型：
--
作者：
K. Honda
摘要 本文提出了与发音建模及其控制相关的舌发音运动组织的一些基本概念。我们为了追求语音产生的现实模型而进行的生理和形态学研究被概括为控制组织的三个层次：外围机制、运动命令生成和感觉运动整合。咬合架的外围组织可以建模为质量弹簧系统。舌头肌肉组织被表示为由两对拮抗肌组成的正交系统。低级控制组织是运动指令生成器，它将预期的关节轨迹转换为运动指令序列层。在我们的模型中，电机命令生成器的输入信息被假设为从肌电图 (EMG) 数据导出的舌肌力矢量和的关节轨迹。高层次的控制组织是感觉运动整合，它被认为执行听觉和发音表征之间的映射。我们的数据表明，肌肉力量空间和听觉空间中元音目标的分布是兼容的。元音表示中的这种拓扑兼容性意味着紧密的听觉发音联系，允许预期的运动元音发音与其听觉模式之间的直接双向映射。
Abstract This paper proposes a few basic concepts of motor organization for tongue articulation in relation to articulatory modeling and its control. Our physiological and morphological studies in pursuit of a realistic model of speech production are summarized as three levels of control organization: peripheral mechanisms, motor command generation, and sensorimotor integration. Peripheral organization of articulators can be modeled as a mass-spring system. Tongue musculature is represented as an orthogonal system consisting of two pairs of antagonistic muscles. The low-level control organization is the motor command generator, which transforms intended articulatory trajectories into tiers of motor command sequences. In our model, the input information to the motor command generator is hypothesized as the articulatory trajectory of a vector sum of tongue muscle forces which is derived from electromyographic (EMG) data. The high-level of control organization is the sensorimotor integration which is thought to perform a mapping between auditory and articulatory representations. Our data have suggested that distributions of vowel targets in the muscle force space and in the auditory space are compatible. This topological compatibility in vowel representations implies a tight auditory-articulatory linkage that permits a direct bi-directional mapping between intended motor vowel articulation and its auditory pattern.