[Cochlear microphonic latency].
| Autor: | Sanjuán Juaristi J; Unidad de Neurofisiología Experimental, Hospital Ramón y Cajal, Madrid, España. Electronic address: marsanjuan@gmail.com., Sanjuán Martínez-Conde M; Unidad de Neurofisiología Experimental, Hospital Ramón y Cajal, Madrid, España. |
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| Jazyk: | Spanish; Castilian |
| Zdroj: | Acta otorrinolaringologica espanola [Acta Otorrinolaringol Esp] 2014 Jul-Aug; Vol. 65 (4), pp. 231-6. Date of Electronic Publication: 2014 Jun 19. |
| DOI: | 10.1016/j.otorri.2014.01.003 |
| Abstrakt: | Introduction and Objective: By using appropriate instrumentation, we have found that cochlear microphonics (CM) advance or delay their appearance, depending on the sound pressure that generates them. This time variation is on the order of microseconds. We have not found any reference to this behaviour, which is why we make the finding known. Material and Method: We used the standard instrumentation specified for the study of CM. The method was based on the phase shift function of the CM according to the intensity of the stimulus. Results: Latency was observed in CM, and we determined that latency time diminishes as the intensity of the stimulus increases. Conclusions: From the sound stimulus to the bioelectric potential transduction, there is a time period of microseconds, the shorter the more powerful the stimulus. This suggests that electromechanical transduction is not a simple mechanical process. (Copyright © 2013 Elsevier España, S.L. y Sociedad Española de Otorrinolaringología y Patología Cérvico-Facial. All rights reserved.) |
| Databáze: | MEDLINE |
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