Sökning: "vocal fold strain"

Hittade 2 avhandlingar innehållade orden vocal fold strain.

1. 1. Methods for measurement of vocal fold vibration and viscoelasticity

   Författare :Hans Larsson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :High-speed video imaging; kymography; acoustic analysis; vocal fold vibration; glottal edge; glottal area; laser; mucosal wave; triangulation; vocal fold; vocal fold length; vocal fold width; vocal fold strain; non-invasive; vocal fold scarring; air pulse stimulation;

   Sammanfattning : The overall aim of the thesis was to develop new methods for analysis of vocal fold vibrations and viscoelasticity and to test them in human subjects. In Study I the onset of vibration and irregular vocal fold vibration was examined with laryngoscopy using a high-speed camera at a frame rate of about 2000 images/sec. LÄS MER

3. 2. Hoarseness in ten-year-old children : perceptual characteristics, prevalence and etiology

   Författare :Elisabeth Sederholm; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Child voice; hoarseness; perceptual analysis; voice quality; visual analog scales; connected speech; sustained vowels; prevalence; acute hoarseness; chronic hoarseness; videolaryngoscopy; stroboscopy; incomplete glottal closure; vocal nodules; voice;

   Sammanfattning : The aim of the present investigation was to explore the occurrence of and factors related to hoarseness in ten- year-old children. In order to establish the prevalence of hoarseness in a group of normal children, a method to distinguish atypical from normal voices was introduced and the perceptual characteristics of hoarseness were identified. LÄS MER