Abstract:
UNLABELLED:Parkinson's disease affects the central nervous system resulting in voice quality alterations. It is typically resistant to drug therapy and often persists despite extensive behavioural speech and language therapy. Previous findings show that masking noise will produce a consistent increase in voice intensity in most normal individuals (Lombard's effect). AIM:we evaluated Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease (N=17). MATERIAL AND METHODS:through acoustic analysis, we evaluated intensity alterations and fundamental frequency, before and after white masking noise 40, 70 and 90 dBSL intensities, as well as variations during each vocalization and compared with a control group (N=16). RESULTS:voice intensity varied according to masking intensity, tending to non-linear increases in both groups and gender. Fundamental frequency varied, tending to non-linear increase in both groups and gender. Improvement stability occurred in fundamental frequency and vocal intensity. CONCLUSION:Lombard's effect increased intensity, fundamental frequency and improves voice stability on these patients. STUDY:clinical and experimental.
journal_name
Braz J Otorhinolaryngoljournal_title
Brazilian journal of otorhinolaryngologyauthors
Quedas A,Duprat Ade C,Gasparini Gdoi
10.1016/s1808-8694(15)30129-4subject
Has Abstractpub_date
2007-09-01 00:00:00pages
675-83issue
5eissn
1808-8694issn
1808-8686pii
S1808-8694(15)30129-4journal_volume
73pub_type
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