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How Individuals with Parkinson's Disease Modify Their Speech in a Repetition for Clarification

Lynn Marie Watkins

出版	Brigham Young University. Department of Audiology and Speech-Language Pathology, 2005
URL	http://books.google.com.hk/books?id=Lb-qYgEACAAJ&hl=&source=gbs_api

註釋

The speech of individuals with Parkinson[alpha]s disease (PD) is typically characterized as lacking in proper prosody because of its monopitch and monoloud quality, in addition to its reduced intensity. These qualities make it difficult for others to understand speakers with PD. The purpose of the current study was to identify what individuals with PD would do vocally, if anything at all, to improve speech production following a simulated misunderstanding of what they had just said. The study evaluated the performance of 5 individuals with PD and compared their performance to 5 age- and sex-matched controls. Specifically, measures of vocal intensity (loudness), fundamental frequency (pitch), and utterance duration were made for repetitions of a ♯misheard[alpha] phrase. In one experimental condition noise was presented through headphones to induce the Lombard effect.