Acoustic correlates of monotone speech in Parkinson's disease
Keywords:Acoustic intensity, Diseases, Frequencies, Acoustic speech measures, Fundamental frequency declination, Hypokinetic dysarthria, Monotone speech, Parkinson's disease, Perceptual speech measures, Speech disorders
AbstractOne of the most frequently perceived symptoms in Parkinson's disease (PD) is monotone speech. Correlations between acoustic and perceptual measures of monotone speech in PD were investigated using a variety of acoustic measures, including fundamental frequency (F0) declination. Perceptual ratings and acoustic measures were obtained from PD patients. Patients with severe monotone speech show a significantly different F0 declination pattern than less severe and normal patients. In particular, these monotone patients showed a much more gradual F0 declination than was seen in the normal and the mild subjects.
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