Distribution Pattern of Cochlear Harmonics

Peter Dallos, Richard H. Sweetman

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


This study is designed to determine whether or not traveling waves accompany harmonic distortion products generated in the cochlea, and also to describe the amplitude distribution of these nonlinear components. Cochlear microphonics were monitored with the differential electrode technique from the first and third turns of guinea pig cochleas. Cancellation of the distortion components was attempted by introducing bone conducted pure tones of the frequency of the harmonic and of controllable magnitude and phase. It was demonstrated that harmonic components can never be canceled simultaneously throughout the cochlea. It was shown that the reason for this inability to cancel is that harmonics are not distributed in the cochlea as their own frequency would indicate, but instead they are prominent in the region where their fundamentals are strong.

Original languageEnglish (US)
Pages (from-to)37-46
Number of pages10
Journaljournal of the Acoustical Society of America
Issue number1
StatePublished - Jan 1969

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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