首页   按字顺浏览 期刊浏览 卷期浏览 Velopharyngeal function in young and older adult speakers: Evidence from aerodynamic st...
Velopharyngeal function in young and older adult speakers: Evidence from aerodynamic studies

 

作者: David J. Zajac,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1997)
卷期: Volume 102, issue 3  

页码: 1846-1852

 

ISSN:0001-4966

 

年代: 1997

 

DOI:10.1121/1.420091

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

Intraoral air pressure(P0),nasal airflow, and nasal air volume characteristics were determined from 63 adult speakers during production of oral and nasal consonants. The speakers were categorized into two age groups. Young speakers (21 males, 21 females) ranged in age from 18 to 37 years(mean=24);older speakers (10 males, 11 females) ranged in age from 68 to 83 years(mean=75).Speakers produced the syllables /pi/ and /si/ and the word “hamper” at self-determined loudness levels during reiterant speech tasks. Results indicated similar velopharyngeal function between young and older adults as reflected by nasal airflow and air volume measures. Older adults, however, exhibited significantly higher levels ofP0than younger adults during production of /p/ in “hamper.” In addition, (a) male speakers exhibited higherP0than females during production of /p/ in “hamper,” (b) all speakers demonstrated declination ofP0during production of /p/ in “hamper” as a function of word position in the utterance, and (c) male and female speakers exhibited different patterns of nasal air volume during production of “hamper” as a function of word position in the utterance. The intraoral air pressure results suggest differences in respiratory function between young and older speakers. The nasal air volume results suggest a gender specific velopharyngeal declination effect. Implications for velar motor control strategies are discussed.

 

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