Disorders of verbal expression in parkinsonism

The present study shows that rigor is one of the main causative factors in the parkinsonian speech disorder, whereas tremor ordinarily can only play a minor role. The Fast Fourier Analysis of the frequency spectra demonstrated in parkinsonian speech frequency regions that are energy-deficient and al...

Full description

Saved in:
Bibliographic Details
Published inAdvances in neurology Vol. 40; p. 385
Main Authors Streifler, M, Hofman, S
Format Journal Article
LanguageEnglish
Published United States 1984
Subjects
Aged
Computers
Fourier Analysis
Humans
Middle Aged
Parkinson Disease - complications
Speech Disorders - complications
Speech Intelligibility
Voice Disorders - complications
Online AccessGet more information

Cover

More Information
Summary:The present study shows that rigor is one of the main causative factors in the parkinsonian speech disorder, whereas tremor ordinarily can only play a minor role. The Fast Fourier Analysis of the frequency spectra demonstrated in parkinsonian speech frequency regions that are energy-deficient and also that the entire frequency spectrum is restricted to a range of 100 to 400 Hz, including the deficient regions, as against the 100- to 700-Hz range in the controls. These analytical findings seem to underline the important role played by the laryngeal and breathing dysfunctions in the parkinsonian voice and speech production.
ISSN:0091-3952