An Electrical Correlate of Spontaneous Otoacoustic Emissions in a Frog, a Preliminary Report

  • H. P. Wit
  • P. van Dijk
  • J. M. Segenhout
Part of the NATO ASI Series book series (NSSA)


Amphibians are the lowest class of vertebrates equipped with a specialized hearing organ for airborne sound. In comparison with the highly specialized inner ear of humans the amphibian inner ear is rather primitive. (Lewis et al., 1985). Therefore it is of interest that both human ears and amphibian ears produce spontaneous otoacoustic emissions (Palmer and Wilson, 1981; Wilson et al., 1986); and furthermore that there are no essential differences between emissions from human ears and from amphibian ears (Van Dijk and Wit, 1987). In both cases the acoustic emission signals are the product of a self-sustained oscillatory process (Long et al., 1988; Van Dijk and Wit, 1988), most likely in the inner ear.


Hair Cell Tympanic Membrane Acoustic Emission Signal Otoacoustic Emission Cochlear Microphonic 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • H. P. Wit
    • 1
  • P. van Dijk
    • 1
  • J. M. Segenhout
    • 1
  1. 1.Institute of AudiologyUniversity HospitalRB GroningenThe Netherlands

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