论文信息 - Is the pressure difference between the oval and round windows the effective acoustic stimulus for the cochlea?

Is the pressure difference between the oval and round windows the effective acoustic stimulus for the cochlea?

The assumption that the pressure difference between the cochlear windows is the stimulus that produces cochlear responses is tested experimentally in the ears of anesthetized cats. Cochlear potential is used as a measure of cochlear response. The sound pressures at the oval and round windows are individually controlled with both pressures at the same frequency and amplitude. When the angle difference between the two pressures is varied over one cycle, cochlear-potential magnitude varies by about 40 dB, with a sharp minimum occurring with the angle difference near zero. A linear model of the response to the two input pressures estimates a complex common-mode gain C and a complex difference-mode gain D; magnitude of D is about 35 dB greater than magnitude of C over the frequency range that was tested (75 to 1000 Hz). Thus, except for conditions that make the common-mode input much larger than the difference-mode input, the pressure difference between the oval and round windows is, to a good approximation, the effective acoustic stimulus for the cochlea.

[1] H WULLSTEIN,et al. The restoration of the function of the middle ear, in chronic otitis media. , 1956, The Annals of otology, rhinology, and laryngology.

[2] M LAWRENCE,et al. The middle ear in sound conduction. , 1948, Archives of otolaryngology.

[3] G Zweig,et al. An empirical bound on the compressibility of the cochlea. , 1992, The Journal of the Acoustical Society of America.

[4] Jozef J. Zwislocki,et al. Analysis of Some Auditory Characteristics. , 1963 .

[5] J. Pickles. An Introduction to the Physiology of Hearing , 1982 .

[6] J. Nash. Compact Numerical Methods for Computers , 2018 .

[7] M. Lawrence,et al. The Acoustic Pathways to the Cochlea , 1950 .

[8] H. Schuknecht,et al. Results of tympanoplasty and mastoidectomy at the massachusetts eye and ear infirmary , 1971, The Laryngoscope.

[9] S. Merchant,et al. Middle ear mechanics of type IV and type V tympanoplasty: I. Model analysis and predictions. , 1995, The American journal of otology.

[10] A. Nuttall,et al. Characterization of an EPSP-like potential recorded remotely from the round window. , 1989, The Journal of the Acoustical Society of America.