Characteristics of Vocal Fold Vibrations in Vocally Healthy Subjects: Analysis With Multi-Line Kymography PurposeIn this study, the authors aimed to analyze longitudinal data from high-speed digital images in normative subjects using multi-line kymography.MethodVocally healthy subjects were divided into young (9 men and 17 women; Mage = 27 years) and older groups (8 men and 12 women; Mage = 73 years). From high-speed digital ... Supplement
Supplement  |   April 01, 2014
Characteristics of Vocal Fold Vibrations in Vocally Healthy Subjects: Analysis With Multi-Line Kymography
 
Author Affiliations & Notes
  • Akihito Yamauchi
    University of Tokyo Hospital, Tokyo, Japan
  • Hiroshi Imagawa
    University of Tokyo Hospital, Tokyo, Japan
  • Ken-Ichi Sakakibara
    Health Sciences University of Hokkaido, Japan
  • Hisayuki Yokonishi
    University of Tokyo Hospital, Tokyo, Japan
  • Takaharu Nito
    University of Tokyo Hospital, Tokyo, Japan
  • Tatsuya Yamasoba
    University of Tokyo Hospital, Tokyo, Japan
  • Niro Tayama
    National Center for Global Health and Medicine, Tokyo, Japan
  • Disclosure:The authors have declared that no competing interests existed at the time of publication.
    Disclosure:The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to Akihito Yamauchi: drachilles23@yahoo.co.jp
  • Editor: Jody Kreiman
    Editor: Jody Kreiman×
  • Associate Editor: Scott Thomson
    Associate Editor: Scott Thomson×
Article Information
Speech, Voice & Prosodic Disorders / Voice Disorders / Speech, Voice & Prosody / Supplement
Supplement   |   April 01, 2014
Characteristics of Vocal Fold Vibrations in Vocally Healthy Subjects: Analysis With Multi-Line Kymography
Journal of Speech, Language, and Hearing Research, April 2014, Vol. 57, S648-S657. doi:10.1044/2014_JSLHR-S-12-0269
History: Received August 28, 2012 , Revised December 18, 2012 , Accepted June 26, 2013
 
Journal of Speech, Language, and Hearing Research, April 2014, Vol. 57, S648-S657. doi:10.1044/2014_JSLHR-S-12-0269
History: Received August 28, 2012; Revised December 18, 2012; Accepted June 26, 2013
Web of Science® Times Cited: 3

PurposeIn this study, the authors aimed to analyze longitudinal data from high-speed digital images in normative subjects using multi-line kymography.

MethodVocally healthy subjects were divided into young (9 men and 17 women; Mage = 27 years) and older groups (8 men and 12 women; Mage = 73 years). From high-speed digital images of phonation at a conversational frequency kymograms were created at 5 different levels of the vocal fold and were analyzed to determine the opening/closing longitudinal phase difference, open quotient, and speed index. Then age- and gender-related differences of these parameters were analyzed statistically.

ResultsYoung women frequently showed a pattern of posterior-to-anterior glottal opening and anterior-to-posterior glottal closure, and older women demonstrated various opening and closing patterns. Both young men and older men were similar to older women. The open quotient was maximal at the most posterior glottal level in young women, but it tended to be maximal at the anterior glottis in the other subgroups. The mean value of the 5 open quotients was largest in young women. The mean speed index had a large negative value in older subjects.

ConclusionThis study provides the first information about age-related differences of longitudinal oscillatory characteristics of the vocal folds obtained with high-speed digital imaging.

Acknowledgments
This research was presented at the 8th International Conference on Voice Physiology and Biomechanics, Erlangen, Germany, 2012.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access