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- Title
EFEITO DA ESTIMULAÇÃO ACÚSTICA CONTRALATERAL NAS MEDIDAS TEMPORAIS DAS EMISSÕES OTOACÚSTICAS.
- Authors
Leme, Vanessa Nogueira; Mamede Carvallo, Renata Mota
- Abstract
Purpose: compare the otoacoustic emissions response level and latency in two situations: with and without contralateral competitive noise. Methods: thirty individuals between eighteen and thirty-year-old, with no auditory complaints and presence of otoacoustic distortion product emissions were evaluated. The latency and the response level of otoacoustic emissions was evaluated using the Latencygram program. The test was performed in two different situations: with and without contralateral competitive white noise. Results: the results demonstrated a significant reduction in otoacoustic emissions response levels with contralateral noise, proving the otoacoustic suppression effect associated with olivocochlear efferent system action. However, there was no significant difference in otoacoustic emissions latency. Conclusion: the efferent system may act only in otoacoustic emissions response level modulation but it does not interfere in otoacoustic emissions latency.
- Subjects
OTOACOUSTIC emissions; BIOACOUSTICS; HEARING; REACTION time; PSYCHOPHYSIOLOGY; MOTOR ability; NEURAL stimulation; PHYSIOLOGICAL effects of sound; WHITE noise theory
- Publication
Revista CEFAC, 2009, Vol 11, p24
- ISSN
1516-1846
- Publication type
Article
- DOI
10.1590 / S1516- 18462009005000008