Effects of Neurosurgical Management of Parkinson's Disease on Speech Characteristics and Oromotor Function The present study examined the effects of neurosurgical management of Parkinson’s disease (PD), including the procedures of pallidotomy, thalamotomy, and deep-brain stimulation (DBS) on perceptual speech characteristics, speech intelligibility, and oromotor function in a group of 22 participants with PD. The surgical participant group was compared with a group of ... Research Article
Research Article  |   February 01, 2005
Effects of Neurosurgical Management of Parkinson's Disease on Speech Characteristics and Oromotor Function
 
Author Affiliations & Notes
  • Anna Farrell
    University of Queensland, Brisbane, Queensland, Australia
  • Deborah Theodoros
    University of Queensland, Brisbane, Queensland, Australia
  • Elizabeth Ward
    University of Queensland, Brisbane, Queensland, Australia
  • Bruce Hall
    Mater Private Hospital, Brisbane, Queensland, Australia
  • Peter Silburn
    Princess Alexandra Hospital, Brisbane, Queensland, Australia
  • Contact author: Anna Farrell, PhD, Motor Speech Research Unit, The Department of Speech Pathology and Audiology, The University of Queensland, Brisbane 4072, Australia.
    Contact author: Anna Farrell, PhD, Motor Speech Research Unit, The Department of Speech Pathology and Audiology, The University of Queensland, Brisbane 4072, Australia.×
  • Corresponding author: Email: annabellafarrell@hotmail.com
Article Information
Speech, Voice & Prosodic Disorders / Special Populations / Older Adults & Aging / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   February 01, 2005
Effects of Neurosurgical Management of Parkinson's Disease on Speech Characteristics and Oromotor Function
Journal of Speech, Language, and Hearing Research, February 2005, Vol. 48, 5-20. doi:10.1044/1092-4388(2005/002)
History: Received August 20, 2003 , Accepted May 3, 2004
 
Journal of Speech, Language, and Hearing Research, February 2005, Vol. 48, 5-20. doi:10.1044/1092-4388(2005/002)
History: Received August 20, 2003; Accepted May 3, 2004
Web of Science® Times Cited: 16

The present study examined the effects of neurosurgical management of Parkinson’s disease (PD), including the procedures of pallidotomy, thalamotomy, and deep-brain stimulation (DBS) on perceptual speech characteristics, speech intelligibility, and oromotor function in a group of 22 participants with PD. The surgical participant group was compared with a group of 25 non-neurologically impaired individuals matched for age and sex. In addition, the study investigated 16 participants with PD who did not undergo neurosurgical management to control for disease progression. Results revealed that neurosurgical intervention did not significantly change the surgical participants’ perceptual speech dimensions or oromotor function despite significant postoperative improvements in ratings of general motor function and disease severity. Reasons why neurosurgical intervention resulted in dissimilar outcomes with respect to participants’ perceptual speech dimensions and general motor function are proposed.

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