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Vol. 59, No. 6, 2007
Issue release date: October 2007
Section title: Original Paper
Folia Phoniatr Logop 2007;59:306–317
(DOI:10.1159/000108337)

Effects of Speech Stimuli and Dysarthria Severity on Intelligibility Scores and Listener Confidence Ratings for Speakers with Cerebral Palsy

Hustad K.C.
Department of Communicative Disorders and Waisman Center, University of Wisconsin, Madison, Wisc., USA

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Accepted: 6/8/2006
Published online: 10/31/2007

Number of Print Pages: 12
Number of Figures: 6
Number of Tables: 5

ISSN: 1021-7762 (Print)
eISSN: 1421-9972 (Online)

For additional information: http://www.karger.com/FPL

Abstract

This study examined differences among transcription intelligibility scores and listener confidence ratings for three different types of speech stimuli – single words, unrelated sentences, and sentences forming a narrative – all produced by speakers with dysarthria. Twelve speakers with dysarthria of varying severity secondary to cerebral palsy and 144 listeners participated in this study. Results showed that both intelligibility scores and confidence ratings were differentially affected by both stimuli and severity. For speakers with mild, moderate, and severe dysarthria, intelligibility scores were higher for narratives than for either of the other two types of speech stimuli. For speakers with mild dysarthria, sentences were substantially more intelligible than single words. However, for speakers with moderate, severe, and profound dysarthria, the difference in intelligibility scores for sentences and single words was small or nonsignificant. Confidence ratings did not follow the same pattern as intelligibility data, suggesting a mismatch between listeners’ perception of their performance and their actual performance on intelligibility tasks.


  

Author Contacts

Katherine Hustad
475 Waisman Center
1500 Highland Avenue
Madison, WI 53705 (USA)
Tel. +1 608 265 9977, Fax +1 608 263 7710, E-Mail kchustad@wisc.edu

  

Article Information

Portions of these data were presented at the American Speech- Language and Hearing Association Annual Convention, Chicago, Ill. (November, 2003).

Number of Print Pages : 12
Number of Figures : 6, Number of Tables : 5, Number of References : 18

  

Publication Details

Folia Phoniatrica et Logopaedica (International Journal of Phoniatrics, Speech Therapy and Communication Pathology)

Vol. 59, No. 6, Year 2007 (Cover Date: October 2007)

Journal Editor: Schutte, H.K. (Groningen)
ISSN: 1021–7762 (print), 1421–9972 (Online)

For additional information: http://www.karger.com/FPL


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Accepted: 6/8/2006
Published online: 10/31/2007

Number of Print Pages: 12
Number of Figures: 6
Number of Tables: 5

ISSN: 1021-7762 (Print)
eISSN: 1421-9972 (Online)

For additional information: http://www.karger.com/FPL


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Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in goverment regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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