Document Detail

A Preliminary Study for a Slantwise-Placed Electroglottography.
MedLine Citation:
PMID:  25444155     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Slantwise-placed electroglottography (EGG) was proposed for synchronous use with an ultrasound machine in a previous work. The objective was to confirm the feasibility of this slant EGG, differentiate it from conventional EGG, and give suggestions for its applications.
STUDY DESIGN AND METHODS: A synchronized system composed of an EGG device, a high-speed video, a sound level meter, and a headset was established. The same phonation conditions were acquired by training subjects to reach the target phonation frequency and intensity. Electrode position was designed, and vocal fold vibration parameters were measured from EGG waveforms recorded in each electrode position.
RESULTS: Comparison showed that the characteristic points identified in slant EGG waveforms were consistent with the vibration phase shown by high-speed video images. Phonation frequency measured from slant EGG was highly accurate. EGG amplitude nonlinearly decreased with the increase of electrode distance. Compared with conventional EGG parameters, velocity ratio and glottal closed quotient measured from slant EGG were accurate when electrodes were placed symmetrically and the electrode distance was within a proper length.
CONCLUSIONS: Slant EGG was proved feasible and can be considered as a useful tool to obtain comprehensive information in investigating the in vivo vocal fold dynamics when synchronized with other detecting equipment.
Shanshan Tang; Cong Zhang; Supin Wang; Mingxi Wan
Related Documents :
16732555 - Noise exposures aboard catcher/processor fishing vessels.
3569445 - Radiological evaluation of early pleural and pulmonary changes in light asbestos exposure.
19880025 - Histologic changes in the auditory tube mucosa of rats after long-term exposure to ciga...
20835945 - Noise exposure, characterization, and comparison of three football stadiums.
22915945 - Effects of a transmitted light device for pediatric peripheral venipuncture and intrave...
2650895 - Masking in invertebrates.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-28
Journal Detail:
Title:  Journal of voice : official journal of the Voice Foundation     Volume:  -     ISSN:  1873-4588     ISO Abbreviation:  J Voice     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-12-2     Completed Date:  -     Revised Date:  2014-12-3    
Medline Journal Info:
Nlm Unique ID:  8712262     Medline TA:  J Voice     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Quantitative assessment of the asphericity of pretherapeutic FDG uptake as an independent predictor ...
Next Document:  Vocal Fold Nodules in School Age Children: Attention Deficit Hyperactivity Disorder as a Potential R...