7. Speech Naturalness

The Phonetics of Dysarthria - Studies in Production and Perception - Ioannis Papakyritsis

Ioannis Papakyritsis [+-]
University of Patras
Ioannis Papakyritsis is an assistant professor in the department of Speech and Language Therapy at University of Patras and a certified clinician. He has worked as an assistant professor in Western Illinois University. He holds a PhD from the University of Louisiana at Lafayette. His research interests include clinical acoustic phonetics and the analysis of suprasegmentals in neurogenic speech disorders. He is teaching classes on communication disorders at undergraduate and Master’s levels and he has been working as a clinical supervisor of student clinicians and as speech & language therapist. He currently lives in Patras, Greece.
Marie Klopfenstein [+-]
Southern Illinois University Edwardsville
Marie Klopfenstein, Ph.D. in an Associate Professor in the Speech-Language Pathology and Audiology program, which is part of the Department of Applied Health at Southern Illinois University Edwardsville. She teaches undergraduate and graduate classes in phonetics, speech science, and voice. Dr. Klopfenstein has presented and published widely on acoustic and perceptual correlates of speech naturalness. Her other research includes voice services for transgender and gender non-conforming individuals, speech rate, sonority, and phonetic transcription, with current focus on populations with unmet needs and issues with accessing speech and language services.
Ben Rutter [+-]
University of Sheffield
Ben Rutter is a lecturer in Clinical Linguistics at the University of Sheffield. He has a degree in Linguistics and Phonetics from the University of York and did his Ph.D. in the Department of Communicative Disorders at the University of Louisiana at Lafayette under the supervision of Martin J. Ball and Nicole Müller. His research focuses on the role of phonetics in Speech and Language Therapy and he has written extensively on interactional phonetics and dysarthria. More recently he has been working on topics related to the Medical Humanities. Ben is on the editorial board for the journal Clinical Linguistics and Phonetics.


Recent research on how individuals with Parkinson’s disease (hereafter PD) perceive that their communication has changed since onset of the disease reveals that most of these individuals feel a negative impact, one that includes fear of social interaction and withdrawal. As one participant in another study stated, “[Sometimes] I just can’t do the conversation, I just say, oh, I hope they don’t talk to us, you know, they’ll just say, hello, how are you, and walk away” (Miller, Noble, Jones, & Burn, 2006). The striking thing about the individuals in these studies is that these perceived changes and their impact on communication could occur before any apparent decline in intelligibility or referral to speech-language pathologists (Miller et al., 2006; Miller, Noble, Jones, Allcock, & Burn, 2008). One possible metric for this perceived communicative change for the worse in those with PD and their caretakers is speech naturalness (Martin, Haroldson, & Triden, 1984), a standard of measurement commonly used by speech-language pathologists and the subject of much research attempting to define its properties.

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Papakyritsis, Ioannis ; Klopfenstein, Marie; Rutter, Ben. 7. Speech Naturalness. The Phonetics of Dysarthria - Studies in Production and Perception. Equinox eBooks Publishing, United Kingdom. Aug 2021. ISBN 9781800500181. https://www.equinoxpub.com/home/view-chapter/?id=41371. Date accessed: 20 Sep 2020 doi: 10.1558/equinox.41371. Aug 2021

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