Characteristics of vocal fold adduction related to voice onset

This study examined whether vocal fold kinematics prior to phonation differed between hard (glottal), normal, or breathy onsets in men and women. Glottal landmarks were identified and digitized from videotape recorded with a rigid laryngoscope during different voice onset types. Significant linear r...

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Bibliographic Details
Published in:Journal of voice 1997-03, Vol.11 (1), p.12-22
Main Authors: Cooke, Ayanna, Ludlow, Christy L., Hallett, Nicholas, Scott Selbie, W.
Format: Article
Language:English
Subjects:
Adduction
Adult
Displacement
Female
Humans
Larynx - physiology
Male
Onset
Sex Factors
Time Factors
Velocity
Vocal Cords - physiology
Voice - physiology
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Summary:This study examined whether vocal fold kinematics prior to phonation differed between hard (glottal), normal, or breathy onsets in men and women. Glottal landmarks were identified and digitized from videotape recorded with a rigid laryngoscope during different voice onset types. Significant linear relationships (p â©˝ 0.0055) were found among onset types on measures of (a) gesture duration when moving from 80% to 20% of maximum distance during adduction, (b) maximum velocity, (c) duration between the completion of adduction and phonation onset, and (d) ratios of maximum velocity to maximum distance between the vocal processes, an estimate of stiffness. The gesture duration was greatest for breathy onsets and least for hard onsets, while the maximum velocity, latency between adduction and phonation onset, and estimated stiffness were greatest for hard onsets and least for breathy onsets. The results suggest that one trajectory seems to be used with increases in gesture duration being accompanied by decreases in articulator stiffness when moving from hard to normal to breathy voice onset types.
ISSN:0892-1997
1873-4588
DOI:10.1016/S0892-1997(97)80019-7