Ontogenetic changes in frequency mapping of a mammalian ear

David M. Harris*, Peter Dallos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

132 Scopus citations


Cochlear microphonic iso-response functions reported here suggest an explanation of frequency-dependent changes in hearing sensitivity during early development. The work is a direct demonstration of developmental changes in the spatial frequency map of the mammalian hearing organ. Intracochlear recordings from the midbasal turn in a series of age-graded gerbils reveal a progressive increase in best frequency, spanning approximately two octaves, from the time of onset of function until adultlike responses are seen. It is, therefore, suggested that ontogenetic changes in the cellular structure of the organ of Corti contribute to an agedependent shift in micromechanical response.

Original languageEnglish (US)
Pages (from-to)741-743
Number of pages3
Issue number4663
StatePublished - 1984

ASJC Scopus subject areas

  • General


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