Growth of suppression in the cochlear potentials

M. A. Cheatham*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Measurement of two-tone effects in the cochlear microphonic and summating potential indicates that the growth of suppression is different for these two cochlear potentials. Whereas the CM response to the fundamental is reduced 10 dB for each 10 dB increase in suppressor level, the SP decreases at a faster rate; approximately 20 dB per 10 dB increase. Slopes of functions for the CM response to the second harmonic are similar to those for the dc component. Since these results are consistent with the notion that suppression operates by attenuating the input to the CM generator, they are consonant with a mechanical origin of suppression.

Original languageEnglish (US)
Pages (from-to)291-294
Number of pages4
JournalHearing research
Issue number3
StatePublished - Jun 1985


  • cochlear potential
  • distortion product
  • nonlinearity
  • two-tone suppression

ASJC Scopus subject areas

  • Sensory Systems


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