Keywords
Loud speech, intelligibility, Parkinson disease, amplification
Abstract
Amplification may be helpful in improving speech intelligibility for some speakers with Parkinson disease. Because the gain used in the present study was limited to the dB increase from habitual to loud speech, it is unclear how performance might increase with higher amplification levels. Increases in the signal to noise ratio in the present study only account for about one third to one half of the intelligibility improvements that accompany loud speech. Thus, loud speech differs from habitual speech in more than just its amplitude. Articulation appears to play a lesser role in these improvements, whereas source spectral changes may be more important. Prosody may also be an important feature to study in the future. Further work is needed to better understand the specific mechanisms underlying intelligibility improvements in loud speech in this population.
Original Publication Citation
Dromey, C. (2010). Louder speech leads to greater intelligibility improvements than amplification of habitual speech in Parkinson disease. Evidence-based Communication Assessment and Intervention, 4, 45-48.
BYU ScholarsArchive Citation
Dromey, Christopher, "Louder Speech Leads to Greater Intelligibility Improvements than Amplification of Habitual Speech in Parkinson Disease" (2010). Faculty Publications. 1782.
https://scholarsarchive.byu.edu/facpub/1782
Document Type
Peer-Reviewed Article
Publication Date
2010
Permanent URL
http://hdl.lib.byu.edu/1877/3732
Publisher
Taylor & Francis
Language
English
College
David O. McKay School of Education
Department
Communication Disorders
Copyright Status
© 2010 Taylor & Francis. All rights reserved. This is an Accepted Manuscript of an article published by Taylor & Francis in Evidence-based Communication Assessment and Intervention in 2010, available online: http://dx.doi.org/10.1080/17489531003668926
Copyright Use Information
http://lib.byu.edu/about/copyright/