SPEECH PRODUCTION IN PARKINSONS DISEASE

这个项目的目的是评估中国人的发音特点 从声学信号推断出帕金森氏症。加速 帕金森病患者的语速与幅度的降低 (运动减退)和速度(运动迟缓) 建议增加手势重叠和/或减少手势 与以习惯性语速产生的话语相比， 健康的演讲者。帕金森病患者说话速度减慢可能与 手势减少重叠，尽管有证据表明脱钩 帕金森病患者的空间和时间关节关系的研究表明 手势大小可能不受语速的影响，例如 健康的演讲者。该项目使用了手势滑动和 手势大小可解释推断的发音障碍 来自声学信号F2的轨迹将被用作声学 元音手势的表示；将使用F2起始频率作为 手势重叠的索引。有一些问题与 对该人群言语运动控制障碍的认识 并且可以被合并到治疗中。

The aim of this project is to evaluate articulatory characteristics in Parkinson's disease inferred from the acoustic signal. Accelerated speaking rate in PD coupled with reductions in amplitude (hypokinesia) and velocity (bradykinesia) of articulatory movements suggest increased overlap of gestures and or reductions in gesture magnitude in comparison to utterances produced at habitual rates by healthy speakers. Slowing speaking rate in PD may be associated with reductions in gesture overlap although evidence for decoupling of spatial and temporal articulatory relationships in Pd suggests that gesture magnitude may not be influenced by speaking rate as for healthy speakers. This project uses principles of gesture sliding and gesture magnitude to account for articulatory deficits as inferred from the acoustic signal F2 trajectories will be used as an acoustic representation of vowel gestures; F2 onset frequency will be used as an index of gesture overlap. There issues are relevant to the understanding of disordered speech motor control in this population and may be incorporated into a treatment.