Quantification of sound instability in embouchure tremor based on the time varying fundamental frequency.
Quantification of sound instability in embouchure tremor based on the time varying fundamental frequency.
复制标题
基于时变基频的口震颤声音不稳定性的量化。
DOI：
10.1007/s00702-016-1533-6
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发表时间：
2016
影响因子：
3.3
通讯作者：
Altenmuller E
中科院分区：
文献类型：
--
作者：
Lee A;Voget J;Furuya S;Morise M;Altenmuller E
音乐家的任务特异性震颤是一种主要是手或口部的无意识振荡肌肉活动，主要发生在演奏乐器时。与基于运动运动学和肌肉活动进行检查和客观化的手臂或手震颤相比，口型震颤尚未得到研究。为了量化和描述口震，我们分析了声音的产生并研究了持续音符随时间变化的基频的波动。口震颤患者与健康对照者之间的比较显示，高音患者的基频波动明显较高，震颤频率范围在 3 至 8 Hz 之间。目前的研究结果首先提供了有关很少描述的运动障碍的进一步信息，其次进一步评估了最近为口型肌张力障碍建立的口型震颤的新量化方法。
Task-specific tremor in musicians is an involuntary oscillating muscular activity mostly of the hand or the embouchure, which predominantly occurs while playing the instrument. In contrast to arm or hand tremors, which have been examined and objectified based on movement kinematics and muscular activity, embouchure tremor has not yet been investigated. To quantify and describe embouchure tremor we analysed sound production and investigated the fluctuation of the time-varying fundamental frequency of sustained notes. A comparison between patients with embouchure tremor and healthy controls showed a significantly higher fluctuation of the fundamental frequency for the patients in the high pitch with a tremor frequency range between 3 and 8 Hz. The present findings firstly provide further information about a scarcely described movement disorder and secondly further evaluate a new quantification method for embouchure tremor, which has recently been established for embouchure dystonia.