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Article: Acoustic analysis of lexical tone contrasts in dysarthria
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TitleAcoustic analysis of lexical tone contrasts in dysarthria
 
AuthorsWhitehill, TL1
Ciocca, V1
Chow, DTY1
 
Issue Date2000
 
PublisherDelmar Cengage Learning. The Journal's web site is located at http://cengagesites.com/academic/?site=3802
 
CitationJournal Of Medical Speech-Language Pathology, 2000, v. 8 n. 4, p. 337-344 [How to Cite?]
 
AbstractThe aim of this study was to investigate lexical tone production in adults with dysarthria and control speakers without neurologic impairment, using acoustic analysis. The speakers with dysarthria included 19 Cantonese-speaking adults with cerebral palsy. The speech material consisted of 12 single words that provided contrasts between high level, mid level, and low level tones. Fundamental frequency (f0) was measured at the beginning, middle, and end of each vowel. The speakers with dysarthria had significantly higher mean f0s than the control speakers for high, mid, and low level tones, except for females during high tone productions, where the difference was not significant. The speakers with dysarthria had significantly larger variability than the control speakers. Only four of the 19 speakers with dysarthria had contrastive systems for the three level tones. Abnormal f0 patterns in the speakers with dysarthria included: 1) excessive variability, 2) excessively falling frequencies, 3) lowering of the high level tone, 4) rising tones, and 5) abnormal contour patterns. The results of the acoustic analysis supported previous perceptual findings of difficulty in tone level contrasts for Cantonese speakers with dysarthria.
 
ISSN1065-1438
2012 SCImago Journal Rankings: 0.239
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorWhitehill, TL
 
dc.contributor.authorCiocca, V
 
dc.contributor.authorChow, DTY
 
dc.date.accessioned2010-09-06T08:30:27Z
 
dc.date.available2010-09-06T08:30:27Z
 
dc.date.issued2000
 
dc.description.abstractThe aim of this study was to investigate lexical tone production in adults with dysarthria and control speakers without neurologic impairment, using acoustic analysis. The speakers with dysarthria included 19 Cantonese-speaking adults with cerebral palsy. The speech material consisted of 12 single words that provided contrasts between high level, mid level, and low level tones. Fundamental frequency (f0) was measured at the beginning, middle, and end of each vowel. The speakers with dysarthria had significantly higher mean f0s than the control speakers for high, mid, and low level tones, except for females during high tone productions, where the difference was not significant. The speakers with dysarthria had significantly larger variability than the control speakers. Only four of the 19 speakers with dysarthria had contrastive systems for the three level tones. Abnormal f0 patterns in the speakers with dysarthria included: 1) excessive variability, 2) excessively falling frequencies, 3) lowering of the high level tone, 4) rising tones, and 5) abnormal contour patterns. The results of the acoustic analysis supported previous perceptual findings of difficulty in tone level contrasts for Cantonese speakers with dysarthria.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationJournal Of Medical Speech-Language Pathology, 2000, v. 8 n. 4, p. 337-344 [How to Cite?]
 
dc.identifier.epage344
 
dc.identifier.hkuros58278
 
dc.identifier.issn1065-1438
2012 SCImago Journal Rankings: 0.239
 
dc.identifier.issue4
 
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dc.identifier.urihttp://hdl.handle.net/10722/82534
 
dc.identifier.volume8
 
dc.languageeng
 
dc.publisherDelmar Cengage Learning. The Journal's web site is located at http://cengagesites.com/academic/?site=3802
 
dc.publisher.placeUnited States
 
dc.relation.ispartofJournal of Medical Speech-Language Pathology
 
dc.relation.referencesReferences in Scopus
 
dc.titleAcoustic analysis of lexical tone contrasts in dysarthria
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong