韵律操纵对儿童发音运动学和第二共振峰轨迹的影响。
Effect of prosodic manipulation on articulatory kinematics and second formant trajectories in children.
作者信息
Allison Kristen M, Salehi Sina, Green Jordan R
机构信息
Department of Communication Sciences and Disorders, Northeastern University, 360 Huntington Avenue Boston, Massachusetts 02115, USA.
Department of Communication Sciences and Disorders, MGH Institute of Health Professions, 36 1st Avenue, Charlestown, Massachusetts 02129, USA.
出版信息
J Acoust Soc Am. 2020 Feb;147(2):769. doi: 10.1121/10.0000670.
This study investigated effects of rate reduction and emphatic stress cues on second formant (F2) trajectories and articulatory movements during diphthong production in 11 typically developing school-aged children. F2 extent increased in slow and emphatic stress conditions, and tongue and jaw displacement increased in the emphatic stress condition compared to habitual speech. Tongue displacement significantly predicted F2 extent across speaking conditions. Results suggest that slow rate and emphatic stress cues induce articulatory and acoustic changes in children that may enhance clarity of the acoustic signal. Potential clinical implications for improving speech in children with dysarthria are discussed.
本研究调查了语速降低和重音提示对11名发育正常的学龄儿童在双元音发音过程中第二共振峰（F2）轨迹和发音动作的影响。与习惯性言语相比，在语速缓慢和重音条件下，F2范围增加，在重音条件下舌头和下颌位移增加。在不同的说话条件下，舌头位移显著预测了F2范围。结果表明，语速缓慢和重音提示会引起儿童的发音和声学变化，这可能会增强声学信号的清晰度。文中还讨论了对改善构音障碍儿童言语的潜在临床意义。
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