TY - JOUR
T1 - The impact of Parkinson’s disease on breath pauses and their relationship to speech impairment
T2 - A longitudinal study
AU - Darling-White, Meghan
AU - Huber, Jessica E.
N1 - Funding Information:
Research reported in this publication was supported by National Institute on Deafness and Other Communication Disorders Grant R03DC05731, a Research Support Incentive Grant from the Center on Aging and the Life Course at Purdue University, and a Summer Faculty Support Grant from Purdue University, all of which were awarded to the second author (Jessica E. Huber). Support was also provided by the National Institute on Deafness and Other Communication Disorders under Grant T32DC000030 (awarded to Elizabeth A. Strickland). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute on Deafness and Other Communication Disorders, the National Institutes of Health, the Center on Aging and the Life Course, or Purdue University. We would like to thank the participants involved in this study, Meghan MacPherson for assistance with data collection, and Meghan Ward for assistance with data analysis. We would also like to thank Elaine Francis for her assistance with the initial creation of the data analysis scheme and her continued support for this project.
Publisher Copyright:
© 2020 American Speech-Language-Hearing Association.
PY - 2020/11
Y1 - 2020/11
N2 - Purpose: The purposes of this longitudinal study were to (a) examine the impact of Parkinson’s disease (PD) progression on breath pause patterns and speech and linguistic errors and (b) determine the extent to which breath pauses and speech and linguistic errors contribute to speech impairment. Method: Eight individuals with PD and eight age-and sex-matched control participants produced a reading passage on two occasions (Time 1 and Time 2) 3 years and 7 months apart on average. Two speech-language pathologists rated the severity of speech impairment for all participants at each time. Dependent variables included the location of each breath pause relative to syntax and punctuation as well as the number of disfluencies and mazes. Results: At Time 1, there were no significant differences between the groups regarding breath pause patterns. At Time 2, individuals with PD produced significantly fewer breath pauses at major syntactic boundaries and periods as well as significantly more breath pauses at locations with no punctuation than control participants. Individuals with PD produced a significantly greater number of disfluencies than control participants at both time points. There were no significant differences between the groups in the number of mazes produced at either time point. Together, the number of mazes and the percentage of breath pauses at locations with no punctuation explained 50% of the variance associated with the ratings of severity of speech impairment. Conclusion: These results highlight the importance of targeting both respiratory physiological and cognitive– linguistic systems in order to improve speech production in individuals with PD.
AB - Purpose: The purposes of this longitudinal study were to (a) examine the impact of Parkinson’s disease (PD) progression on breath pause patterns and speech and linguistic errors and (b) determine the extent to which breath pauses and speech and linguistic errors contribute to speech impairment. Method: Eight individuals with PD and eight age-and sex-matched control participants produced a reading passage on two occasions (Time 1 and Time 2) 3 years and 7 months apart on average. Two speech-language pathologists rated the severity of speech impairment for all participants at each time. Dependent variables included the location of each breath pause relative to syntax and punctuation as well as the number of disfluencies and mazes. Results: At Time 1, there were no significant differences between the groups regarding breath pause patterns. At Time 2, individuals with PD produced significantly fewer breath pauses at major syntactic boundaries and periods as well as significantly more breath pauses at locations with no punctuation than control participants. Individuals with PD produced a significantly greater number of disfluencies than control participants at both time points. There were no significant differences between the groups in the number of mazes produced at either time point. Together, the number of mazes and the percentage of breath pauses at locations with no punctuation explained 50% of the variance associated with the ratings of severity of speech impairment. Conclusion: These results highlight the importance of targeting both respiratory physiological and cognitive– linguistic systems in order to improve speech production in individuals with PD.
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U2 - 10.1044/2020_AJSLP-20-00003
DO - 10.1044/2020_AJSLP-20-00003
M3 - Article
C2 - 32693630
AN - SCOPUS:85096152747
SN - 1058-0360
VL - 29
SP - 1910
EP - 1922
JO - American journal of speech-language pathology
JF - American journal of speech-language pathology
IS - 4
ER -