The response of patients with Parkinson's Disease to DAF and FSF

Anja Lowit, B. Brendel

Research output: Contribution to journalArticle

Abstract

Increased speech rate is a common symptom of Parkinson's Disease (PD) and can have serious effects on a speaker’s communicative ability. Rate reduction is therefore a primary target for therapy. Various behavioral techniques are in common use, but they often result in unnatural speech and have not been evaluated for long-term effectiveness. Instrumental feedback devices maintain speech naturalness, however, they have variable success rates. Our work has investigated how treatment based on instrumental feedback affects various aspects of speech control in these speakers. We raise the question whether similar patterns of response to these two forms of altered auditory feedback apply across stammering and PD subjects. First results indicate that there are no differences concerning susceptibility to delayed auditory feedback (DAF) between speakers who stammer and for speakers with PD, for those with low and high intelligibility (LPD and HPD, respectively). Similar to the speakers who stammer, the speech of the PD patients is more natural in the FSF condition compared to the DAF.
LanguageEnglish
Pages58-61
Number of pages4
JournalStammering research : an on-line journal published by the British Stammering Association
Volume1
Issue number1
Publication statusPublished - Apr 2004

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Keywords

  • Parkinson’s disease
  • altered auditory feedback
  • delayed auditory feedback
  • frequency shifted feedback

Cite this

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AB - Increased speech rate is a common symptom of Parkinson's Disease (PD) and can have serious effects on a speaker’s communicative ability. Rate reduction is therefore a primary target for therapy. Various behavioral techniques are in common use, but they often result in unnatural speech and have not been evaluated for long-term effectiveness. Instrumental feedback devices maintain speech naturalness, however, they have variable success rates. Our work has investigated how treatment based on instrumental feedback affects various aspects of speech control in these speakers. We raise the question whether similar patterns of response to these two forms of altered auditory feedback apply across stammering and PD subjects. First results indicate that there are no differences concerning susceptibility to delayed auditory feedback (DAF) between speakers who stammer and for speakers with PD, for those with low and high intelligibility (LPD and HPD, respectively). Similar to the speakers who stammer, the speech of the PD patients is more natural in the FSF condition compared to the DAF.

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