title: [Cochlear microphonic latency].
abstract: 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.
  
  
  METHODS
  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.
authors: Unidad de Neurofisiología Experimental, Hospital Ramón y Cajal, Madrid, España. Electronic address: marsanjuan@gmail.com.
authors: Julio
authors: J
authors: Sanjuán Juaristi
authors: Unidad de Neurofisiología Experimental, Hospital Ramón y Cajal, Madrid, España.
authors: Mar
authors: M
authors: Sanjuán Martínez-Conde
mesh_terms: D000818:Animals; D003055:Cochlear Microphonic Potentials / Q000502:physiology*; D011930:Reaction Time
keywords: Cochlear microphonic potentials; Células ciliadas externas; Mechanosensory transduction; Outer auditory hair cell; Potenciales microfónicos cocleares; Response latency; Tiempo de latencia; Transducción mecanosensitiva