A method of measuring cochlear potentials evoked by two-tone excitation

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Authors

  • Wojciech Michalski Wrocław University of Technology, Institute of Telecommunications, Teleinformatics and Acoustics Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
  • W. Dziewiszek Wrocław Medical University, Clinic and Department of Otolaryngology, T. Chałubińskiego 2, 50-368 Wrocław, Poland
  • M. Bochnia Wrocław Medical University, Clinic and Department of Otolaryngology, T. Chałubińskiego 2, 50-368 Wrocław, Poland

Abstract

This paper presents a new method of measuring cochlear microphonics (CM) evoked by a two-tone acoustic wave. The method is based on phase sensitive detection whereby it is possible to precisely measure not only excitation frequency CM signals but also combination signals. The method can be used in experiments conducted on animals. Exemplary experimental results are given.

Keywords:

phase sensitive detection, cochlear potentials.