National Changhua University of Education Institutional Repository : Item 987654321/17156
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 6487/11649
Visitors : 28584562      Online Users : 252
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item:

Title: Perceived Phonatory Effort and Phonation Threshold Pressure across a Prolonged Voice-related Task: A Study of Vocal
Authors: Chang, Ann;Michael P. Karnell
Contributors: 英語學系
Keywords: Perceived phonatory effort;Phonatory threshold pressure;Vocal fatigue;Voice disorders
Date: 2004-12
Issue Date: 2013-08-28T03:44:27Z
Publisher: Elsevier
Abstract: Although the problem of vocal fatigue is not uncommon in people with voice disorders, research on objective quantifiable indicators of vocal fatigue is limited. It has been suggested that a speaker's perception of increased phonatory effort associated with periods of prolonged voice use is related to increased lung pressure required to initiate and sustain phonation. The purpose of this study was to examine the relationship among perceived phonatory effort (PPE), which was used as a subjective index of vocal fatigue, and phonation threshold pressure (PTP), a quantifiable measure defined as the minimal lung pressure required to initiate and sustain vocal fold oscillation. PTP and PPE were recorded before, during, and after five adult male and five adult female speakers engaged in a prolonged oral reading task designed to induce vocal fatigue. The results supported a direct, moderately strong relationship between PTP and PPE, particularly when PTP was measured during speech produced at comfortable and low-speaking pitch levels. No gender effects were found. PTP returned to baseline levels within 1 hour after the fatiguing task. PPE returned to baseline within 1 day. The data support the use of PTP as an objective index of vocal fatigue.
Relation: Journal of Voice, 18(4): 454-466
Appears in Collections:[Department of English] Periodical Articles

Files in This Item:

File SizeFormat

All items in NCUEIR are protected by copyright, with all rights reserved.


DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback