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Listener impressions of speakers with Parkinson’s disease


Parkinson’s disease (PD) has several negative effects on speech production and communication. However, few studies have looked at how speech patterns in PD contribute to linguistic and social impressions formed about PD patients from the perspective of listeners. In this study, discourse recordings elicited from nondemented PD speakers (n = 18) and healthy controls (n = 17) were presented to 30 listeners unaware of the speakers’ disease status. In separate conditions, listeners rated the discourse samples based on their impressions of the speaker or of the linguistic content. Acoustic measures of the speech samples were analyzed for comparison with listeners’ perceptual ratings. Results showed that although listeners rated the content of Parkinsonian discourse as linguistically appropriate (e.g., coherent, well-organized, easy to follow), the PD speakers were perceived as significantly less interested, less involved, less happy, and less friendly than healthy speakers. Negative social impressions demonstrated a relationship to changes in vocal intensity (loudness) and temporal characteristics (dysfluencies) of Parkinsonian speech. Our findings emphasize important psychosocial ramifications of PD that are likely to limit opportunities for communication and social interaction for those affected, because of the negative impressions drawn by listeners based on their speaking voice. (JINS, 2010, 16, 49–57.)

Corresponding author
*Correspondence and reprint requests to: Marc D. Pell, Ph.D., McGill University, School of Communication Sciences & Disorders, 1266 Avenue des Pins Ouest, Montréal, Québec H3G 1A8, Canada. E-mail:,
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Ackermann H., & Ziegler W. (1991). Articulatory deficits in Parkinsonian dysarthria: An acoustic analysis. Journal of Neurology, Neurosurgery, and Psychiatry, 54, 10931098.
Alpert M., Pouget E.R., & Silva R. (1995). Cues to the assessment of affects and moods: Speech fluency and pausing. Psychopharmacology Bulletin, 31(2), 421424.
Banse R., & Scherer K.R. (1996). Acoustic profiles in vocal emotion expression. Journal of Personality and Social Psychology, 70(3), 614636.
Boersma P., & Weenink D. (2009). Praat: Doing phonetics by computer (version 5.1) [Computer program]. Retrieved February 17, 2009, from
Brookshire R.H., & Nicholas L.E. (1993). Discourse Comprehension Test. Tucson, AZ: Communication Skill Builders.
Brown B.L., Strong W.J., & Rencher A.C. (1974). Fifty-four voices from two: The effects of simultaneous manipulations of rate, mean fundamental frequency, and variance of fundamental frequency on ratings of personality from speech. Journal of the Acoustical Society of America, 55(2), 313318.
Caekebeke J.F.V., Jennekens-Schinkel A., van der Linden M.E., Buruma O.J.S., & Roos R.A.C. (1991). The interpretation of dysprosody in patients with Parkinson’s disease. Journal of Neurology, Neurosurgery, and Psychiatry, 54, 145148.
Canter G.J. (1963). Speech characteristics of patients with Parkinson’s disease: I. Intensity, pitch, and duration. Journal of Speech and Hearing Disorders, 28(3), 221229.
Cheang H.S., & Pell M.D. (2007). An acoustic investigation of Parkinsonian speech in linguistic and emotional contexts. Journal of Neurolinguistics, 20, 221241.
Critchley E.M.R. (1981). Speech disorders of Parkinsonism: A review. Journal of Neurology, Neurosurgery, and Psychiatry, 44, 751758.
Cummings J.L., Darkins A., Mendez M., Hill M.A., & Benson D.F. (1988). Alzheimer’s disease and Parkinson’s disease: Comparison of speech and language alterations. Neurology, 38, 680684.
Darkins A.W., Fromkin V.A., & Benson D.F. (1988). A characterization of the prosodic loss in Parkinson’s disease. Brain and Language, 34, 315327.
Gamboa J., Jimenez-Jimenez F.J., Nieto A., Montojo A., Orti-Pareja M., Molina J.A., et al. (1997). Acoustic voice analysis in patients with Parkinson’s disease treated with dopaminergic drugs. Journal of Voice, 11(3), 314320.
Goberman A.M., Blomgren M., & Metzger E. (in press). Characteristics of speech disfluency in Parkinson’s disease. Journal of Neurolinguistics.
Goberman A.M., & Coelho C. (2002). Acoustic analysis of Parkinsonian speech I: Speech characteristics and L-Dopa therapy. NeuroRehabilitation, 17, 237246.
Goberman A.M., & Elmer L.W. (2005). Acoustic analysis of clear versus conversational speech in individuals with Parkinson’s disease. Journal of Communication Disorders, 38, 215230.
Hammen V.L., & Yorkston K.M. (1996). Speech and pause characteristics following speech rate reduction in hypokinetic dysarthria. Journal of Communication Disorders, 29, 429445.
Harel B., Cannizzaro M., Cohen H., Reilly N., & Snyder P. (2004). Acoustic characteristics of Parkinsonian speech: A potential biomarker of early disease progression and treatment. Journal of Neurolinguistics, 17, 439453.
Ho A.K., Bradshaw J.L., Iansek R., & Alfredson R. (1999). Speech volume regulation in Parkinson’s disease: Effects of implicit cues and explicit instructions. Neuropsychologia, 37, 14531460.
Ho A.K., Iansek R., & Bradshaw J.L. (2001). Motor instability in Parkinsonian speech intensity. Neuropsychiatry, Neuropsychology, and Behavioural Neurology, 14(2), 109116.
Holmes R.J., Oates J.M., Phyland D.J., & Hughes A.J. (2000). Voice characteristics in the progression of Parkinson’s disease. International Journal of Language & Communication Disorders, 35(3), 407418.
Illes J., Metter E.J., Hanson W.R., & Iritani S. (1988). Language production in Parkinson’s disease: Acoustic and linguistic considerations. Brain and Language, 33, 146160.
Kojima H., Gould W.J., Lambiase A., & Isshiki N. (1980). Computer analysis of hoarseness. Acta Oto-Laryngologica, 89, 547554.
McNamara P., & Durso R. (2003). Pragmatic communication skills in patients with Parkinson’s disease. Brain and Language, 84, 414423.
Miller N., Noble E., Jones D., Allcock L., & Burn D. (2008). How do I sound to me? Perceived changes in communication in Parkinson’s disease. Clinical Rehabilitation, 22, 1422.
Miller N., Noble E., Jones D., & Burn D. (2006). Life with communications changes in Parkinson’s disease. Age and Ageing, 35, 235239.
Murray L.L. (2000). Spoken language production in Huntington’s and Parkinson’s diseases. Journal of Speech, Language, and Hearing Research, 43(6), 13501366.
Murray L.L., & Lenz L.P. (2001). Productive syntax abilities in Huntington’s and Parkinson’s diseases. Brain and Cognition, 46, 213219.
Nilsonne A. (1987). Acoustic analysis of speech variables during depression and after improvement. Acta Psychiatrica Scandinavica, 76(3), 235245.
Nishio M., & Niimi S. (2001). Speaking rate and its components in dysarthric speakers. Clinical Linguistics & Phonetics, 15(4), 309317.
Pell M.D. (1999). Fundamental frequency encoding of linguistic and emotional prosody by right hemisphere-damaged speakers. Brain and Language, 69(2), 161192.
Pell M.D., Cheang H.S., & Leonard C.L. (2006). The impact of Parkinson’s disease on vocal-prosodic communication from the perspective of listeners. Brain and Language, 97(2), 123134.
Pell M.D., & Leonard C.L. (2003). Processing emotional tone from speech in Parkinson’s disease: A role for the basal ganglia. Cognitive, Affective and Behavioral Neuroscience, 3(4), 275288.
Pell M.D., & Leonard C.L. (2005). Facial expression decoding in early Parkinson’s disease. Cognitive Brain Research, 23, 327340.
Pell M.D., & Monetta L. (2008). How Parkinson’s disease affects non-verbal communication and language processing. Language and Linguistics Compass, 2, 739759.
Pitcairn T.K., Clemie S., Gray J.M., & Pentland B. (1990). Impressions of Parkinsonian patients from their recorded voices. British Journal of Disorders of Communication, 25(1), 8592.
Sapir S., Ramig L., & Fox C. (2008). Speech and swallowing disorders in Parkinson’s disease. Current Opinion in Otolaryngology & Head and Neck Surgery, 16(3), 205210.
Strangert E., & Gustafson J. (2008, September). What makes a good speaker? Subject ratings, acoustic measurements and perceptual evaluations. Paper presented at Interspeech, 2008, Brisbane, Australia.
Traunmuller H., & Eriksson A. (1995). The perceptual evaluation of F0 excursions in speech as estimated in liveliness excursions. Journal of the Acoustical Society of America, 97(3), 19051915.
Yumoto E., & Gould W.J. (1982). Harmonics-to-noise ratio as an index of the degree of hoarseness. Journal of the Acoustical Society of America, 71(6), 15441550.
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Journal of the International Neuropsychological Society
  • ISSN: 1355-6177
  • EISSN: 1469-7661
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