Quantitative Evaluation of Inertial and Compressional Components of Bone Conduction in Cats
Year: 1961
Type: conference-abstract
Abstract: The effect of occlusion of the two cochlear windows and of other structural alterations within the middle ear upon transmission of sound by bone conduction had been the subject of an earlier study [cf. J. Acoust. Soc. Am. 32, 1494 (1960)]. At that time, only changes in amplitude had been registered using the alterations of CM responses as an indicator (diff. electrodes in the basal turn). After considerable technical difficulties were overcome, a procedure was developed permitting the simultaneous measurement of amplitude and phase alterations. Measurements were taken under different conditions and their various combinations: with both cochlear windows open or closed, either one at a time or both simultaneously; with the ossicular chain intact or interrupted; and also with the cochlear aqueduct open or closed. The amplitude and phase shifts resulting from each structural alteration permitted to calculate the magnitude and phase of the component thus eliminated, i.e., to present quantitatively inertial and compressional components of bone conduction. (This research was supported by a grant from the National Institutes of Health.)
DOI: 10.1121/1.1936691
Authors: Juergen Tonndorf, R. A. Campbell, L. Bernstein, J. P. Reneau
Institution: University of Iowa
Language: English
Subfield: Sensory Systems
Field: Neuroscience
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W1977122974