CHILDREN'S MECHANISMS FOR VARYING VOCAL INTENSITY

儿童改变声音强度的机制

• 批准号: 2125754
• 负责人: ELAINE Tess STATHOPOULOS
• 金额: $ 10.25万
• 依托单位: STATE UNIVERSITY OF NEW YORK AT BUFFALO
• 依托单位国家: 美国
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2125754
• 关键词: child (0-11); child physical development; developmental neurobiology; human age group; human subject; respiratory disorder diagnosis; respiratory function; speech; vocal cords; vocalization; voice

The broad long-term objective of the present series of studies is to investigate speech motor control in children from a developmental perspective. Data will be collected from children using a mixed- longitudinal design. Respiratory and laryngeal kinematic data will be collected while children and adults speak normally, and at a loud vocal intensity level. Collection of respiratory data will initially evaluate alternative transduction systems - linearized magnetometers and Respigraph. Laryngeal data will be collected with an electroglottograph and pneumotachograph: the electroglottographic waveform will be interpreted in conjunction with the inverse-filtered glottal airflow waveform. Dependent measures for respiration include per cent vital capacity used, maximum end-inspiratory level, and maximum end-expiratory level. Descriptions of the relative contribution of the rib cage and abdomen will be made for individual subjects. Dependent measures for laryngeal movement include open quotient, closed quotient and slope of the closing portion of the electroglottograph waveform. Variability of these data will be studied and interpretations about speech motor control will be made. Finally, a methodological study will be conducted to determine whether linearized magnetometers or Respigraph will be more efficient for sensing respiratory kinematics in children, and to determine whether the two devices will yield similar measures. The specific research questions are as follows: (a) At what age/s do children begin to use a similar respiratory-laryngeal mechanism as adults to vary vocal intensity? (b) What is the nature of the respiratory mechanism that is used by children? (c) Do children use a laryngeal mechanism when increasing their vocal intensity? (d) Are children's respiratory and laryngeal movement data more variable from each other depending on age and are children as a group more variable than adults? (e) What is the most efficient sensing device for measuring respiratory kinematics in children? Data will contribute to the establishment of a developmental model of speech motor control and provide a valid functionally informed basis for treating disordered speech motor control in children.

本系列研究的长远目标是

项目成果

Respiratory and laryngeal function during whispering.

耳语时的呼吸和喉功能。

• DOI: 10.1044/jshr.3404.761
• 发表时间: 1991
• 期刊: Journal of speech and hearing research
• 作者: Stathopoulos,ET;Hoit,JD;Hixon,TJ;Watson,PJ;Solomon,NP
• 通讯作者: Solomon,NP

Approximations of open quotient and speed quotient from glottal airflow and EGG waveforms: effects of measurement criteria and sound pressure level.

声门气流和 EGG 波形的开商和速度商的近似值：测量标准和声压级的影响。

• DOI: 10.1016/s0892-1997(98)80073-8
• 发表时间: 1998
• 期刊: Journal of voice : official journal of the Voice Foundation.
• 作者: Sapienza,CM;Stathopoulos,ET;Dromey,C
• 通讯作者: Dromey,C

Vocal efficiency as a function of vocal intensity: a study of children, women, and men.

声音效率与声音强度的关系：一项针对儿童、女性和男性的研究。

• DOI: 10.1121/1.412062
• 发表时间: 1995
• 期刊: The Journal of the Acoustical Society of America
• 作者: Tang,J;Stathopoulos,ET
• 通讯作者: Stathopoulos,ET

Respiratory and laryngeal function of women and men during vocal intensity variation.

声音强度变化期间女性和男性的呼吸和喉部功能。

• DOI: 10.1044/jshr.3601.64
• 发表时间: 1993
• 期刊: Journal of speech and hearing research
• 作者: Stathopoulos,ET;Sapienza,C
• 通讯作者: Sapienza,C