PMID: 489829Jul 1, 1979Paper

The development of middle-ear admittance in the hamster

The Journal of the Acoustical Society of America
E M RelkinD F Konkle

Abstract

A high-frequency admittance meter was developed and used to study the maturation of physiological function in the middle ear of neonatal golden hamsters (Mesocricetus auratus). The middle-ear input admittance in the frequency range of 0.8-1.8 kHz was measured in animals ranging in age from 6 to 69 days postpartum. Admittance magnitude was found to increase steadily with age, beginning on day 16, to asymptotic values at each test frequency. There were no obvious differences in admittance growth rates within the range of frequencies tested. However, an analysis of the slopes of the admittance ma;nitude frequency response curves revealed an increase from 4.6 dB/octave for animals 25 days old or younger, to 6.3 dB/octave for all older animals. This difference between younger and older subjects indicates that the development of the middle ear in the golden hamster is more complex than a simple increase in pure compliance.

Citations

Sep 1, 1993·Comparative Biochemistry and Physiology. Comparative Physiology·J C SaundersY E Cohen
Mar 1, 1984·Hearing Research·N K Woolf, A F Ryan
Feb 1, 1992·Hearing Research·Y E CohenJ C Saunders
Jun 24, 1998·The Journal of the Acoustical Society of America·J L FitzakerleyE J Walsh
Apr 29, 2006·The Journal of the Acoustical Society of America·Lei SongEdward J Walsh
Feb 7, 1998·Proceedings of the National Academy of Sciences of the United States of America·S S Boatright-Horowitz, A M Simmons
Jun 1, 1983·Journal of Morphology·M Huangfu, J C Saunders
Jan 1, 1980·Acta Oto-laryngologica·E M Relkin, J C Saunders
Sep 1, 1981·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·D ZwillenbergJ C Saunders
Sep 1, 1990·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·J P Thomas, E J Walsh
Jan 1, 1991·Audiology : Official Organ of the International Society of Audiology·L HolteR M Cavanaugh
Jan 1, 1981·Audiology : Official Organ of the International Society of Audiology·A UzielM Marot
May 1, 1993·American Journal of Otolaryngology·Y E CohenJ C Saunders

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