Perception of speech by individuals with Parkinson’s disease: A review

Li Ying Lorinda KWAN-CHEN, Tara Loraine WHITEHILL

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23 Citations (Scopus)


A few clinical reports and empirical studies have suggested a possible deficit in the perception of speech in individuals with Parkinson's disease. In this paper, these studies are reviewed in an attempt to support clinical anecdotal observations by relevant empirical research findings. The combined evidence suggests a possible deficit in patients' perception of their own speech loudness. Other research studies on the perception of speech in this population were reviewed, in a broader scope of the perception of emotional prosody. These studies confirm that Parkinson's disease specifically impairs patients' perception of verbal emotions. However, explanations of the nature and causes of this perceptual deficit are still limited. Future research directions are suggested. Copyright © 2011 Lorinda C. Kwan and Tara L. Whitehill.
Original languageEnglish
Article number389767
JournalParkinson's Disease
Publication statusPublished - 2011


Speech Perception
Parkinson Disease
Empirical Research


Kwan, C. K., & Whitehill, T. L. (2011). Perception of speech by individuals with Parkinson’s disease: A review. Parkinson’s Disease, 2011. Retrieved from