Glottal Closure and Perceived Breathiness During Phonation in Normally Speaking Subjects Glottal closure and perceived breathiness were evaluated in 9 female and 9 male normally speaking subjects ranging in age from 20 to 35 years. Phonations of the vowel /i:/ at three loudness and pitch levels were performed. The degree of glottal closure was judged by speech clinicians from video-fiberstroboscopic recordings. ... Research Article
Research Article  |   September 01, 1990
Glottal Closure and Perceived Breathiness During Phonation in Normally Speaking Subjects
 
Author Affiliations & Notes
  • Maria Södersten
    Department of Logopedics and Phoniatrics, Karolinska Institute, Huddinge Hospital, Sweden
  • Per-Åke Lindestad
    Department of Logopedics and Phoniatrics, Karolinska Institute, Huddinge Hospital, Sweden
  • Requests for reprints should be sent to Maria Södersten, Karolinska Institutet, Dept. of Logopedics and Phoniatrics, Huddinge Hospital, s-141 86 Huddinge, Sweden.
Article Information
Speech, Voice & Prosody / Research Articles
Research Article   |   September 01, 1990
Glottal Closure and Perceived Breathiness During Phonation in Normally Speaking Subjects
Journal of Speech, Language, and Hearing Research, September 1990, Vol. 33, 601-611. doi:10.1044/jshr.3303.601
History: Received October 10, 1989 , Accepted April 26, 1990
 
Journal of Speech, Language, and Hearing Research, September 1990, Vol. 33, 601-611. doi:10.1044/jshr.3303.601
History: Received October 10, 1989; Accepted April 26, 1990

Glottal closure and perceived breathiness were evaluated in 9 female and 9 male normally speaking subjects ranging in age from 20 to 35 years. Phonations of the vowel /i:/ at three loudness and pitch levels were performed. The degree of glottal closure was judged by speech clinicians from video-fiberstroboscopic recordings. Later they rated the degree of perceived breathiness both in the vowels recorded during the fiberscopy and in separately tape-recorded vowels. Intra- and interjudge reliabilities were satisfactory. The degree of incomplete glottal closure and the degree of perceived breathiness were significantly higher for the women than for the men. For both sexes, the degree of incomplete closure and perceived breathiness increased significantly as an effect of decreased loudness. Neither the degree of closure nor the perceived breathiness were significantly affected by changes in pitch or by interaction effects. It was concluded that incomplete glottal closure of the posterior parts of glottis should be regarded as normal primarily in women and that loudness should be taken into consideration when studying glottal closure and breathiness.

ACKNOWLEDGMENTS
We are indebted to the subjects who participated in the experiment and to our colleagues who helped us with the evaluations. We would also like to thank Björn Fritzell, Britta Hammarberg and the anonymous reviewers for valuable comments on earlier versions of this manuscript, Laurie Chapman for guidance in the statistical analyses, and Barbara Prohovnik-Wall, who corrected our English.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access