Acoustic and hearing-perceptual voice analysis in individuals with idiopathic Parkinson's disease in "on" and "off" stages

作者：Santos Luiza Lara M; dos Reis Larissa Oliveira; Bassi Lara; Guzella Clara; Cardoso Francisco; Reis Cesar; Cortes Gama Ana Cristina

来源：Arquivos de Neuro-Psiquiatria, 2010, 68(5): 706-711.

DOI：10.1590/S0004-282X2010000500006

• Parkinson's disease
• voice
• speech acoustics
• hearing perception

Objective: To evaluate the voice quality of patients with idiopathic Parkinson's disease, at the "on" and "off" moments of the disease. Method: Five individuals with Parkinson's disease and five of the control group were assessed. All of them underwent the recording of voice and speech. The acoustic parameters analyzed were: fundamental frequency, jitter, shimmer, harmonic noise proportion and index of tremor, besides performing the hearing-perceptual analysis by means of GRBASI scale. The findings were analyzed using statistics through t test and the level of significance adopted was p<0.05. Results: There was no difference in the acoustic parameters in the three analyzed groups. In the hearing-perceptual analysis, patients with idiopathic Parkinson's disease showed altered voice quality and the ones from the control group, neutral vocal quality. Conclusion: Patients with idiopathic Parkinson's disease present rough, breathy and unstable vocal quality in both stages. In the acoustic analysis, there are no differences in the studied parameters.

• 出版日期2010-10