| Influence of Syllable Train Length and Performance End Effects on Estimation of Phonation Threshold Pressure. | |
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MedLine Citation:
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PMID: 21477985 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES: The purpose of this study was to determine whether the number of syllables collected and performance end effects had a significant effect on phonation threshold pressure (PTP) estimates. METHODS: Ten adult females with normal voices produced five- and seven-syllable trains of /pi/ at low, modal, and high pitches. The results were analyzed using repeated-measures analysis of variance to determine whether a difference existed in PTP when a five-syllable train was collected versus when a seven-syllable train was collected and whether the typically discarded first and last syllables within a train differed from the middle syllables. RESULTS: The results indicated that there was no significant difference in estimated PTP values when calculated from a five-syllable versus a seven-syllable train or between the first, middle, and last syllables within a train. CONCLUSIONS: Based on these findings, it appears that a five-syllable train provides adequate information from which to estimate PTP values. Furthermore, these findings also suggest that within the five-syllable train, any three adjacent syllables could be used to estimate PTP. These findings are significant in developing a clinically standardized, effective, and efficient method for collecting PTP. |
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Authors:
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Katherine Y Faver; Laura W Plexico; Mary J Sandage |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-6 |
Journal Detail:
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Title: Journal of voice : official journal of the Voice Foundation Volume: - ISSN: 1557-8658 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8712262 Medline TA: J Voice Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 The Voice Foundation. Published by Mosby, Inc. All rights reserved. |
Affiliation:
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Department of Communication Disorders, Auburn University, Auburn, Alabama. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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