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Archives of oto-rhino-laryngology

, Volume 242, Issue 1, pp 43–48 | Cite as

Frequency composition of spontaneous cochlear emissions

  • W. Fritze
  • W. Köhler
Article

Summary

Spontaneous cochlear emissions consist of one or more sinus tones. Oscillations and frequency shifts clearly widen averaged traces. Multiple peaks, if present, are spaced at intervals of 2–3‰ of the frequency, and increase with frequency. A frequency jump by the same amount was seen in one case. This appears to represent the distance between hair cells, and suggests that individual hair cells play a leading role in these oscillations.

Key words

Spontaneous cochlear emissions Sinus tones Hair cells 

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References

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    Fritze W (1983) Registration of spontaneous cochlear emissions by means of Fourier transformation. Arch Otorhinolaryngol 238:189–196Google Scholar
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    Fritze W (1983) On the frequency-distribution of spontaneous cochlear emissions. In: Klinke R, Hartmann R (eds) Hearing—physiological bases and psychophysics. Springer, Berlin Heidelberg New York TokyoGoogle Scholar
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    Ruggero MA, Rich NC, Freyman R (1983) Spontaneous and impulsively evoked otoacoustic emissions: indicators of cochlear pathology? Hearing Res 10:283–300Google Scholar
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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • W. Fritze
    • 1
  • W. Köhler
    • 1
  1. 1.Second ENT DepartmentUniversity of Vienna School of Medicine, University HospitalViennaAustria

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