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Clinical Applicability of the SAL Test
TOM W. TILLMAN, PhD
Arch Otolaryngol. 1963;78(1):20-32.
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Through the years, dissatisfaction with the technique of conventional bone conduction audiometry has resulted in efforts to develop alternate methods for obtaining the information which bone conduction audiometry can yield. As early as 1953, Jerger suggested the use of the DL Difference Test as a means "... to predict bone conduction acuity without recourse to bone conduction audiometry in those cases in which the perceptive loss is due to cochlear lesion" (p 499).6 For a number of reasons, this method was never used extensively. In 1955, Rainville13 described a new procedure for assessing cochlear function indirectly. In this technique, evaluation of the differential effect of air conduction and bone conduction masking of pure tones delivered by air conduction was used as a means of arriving at an estimate of bone conduction hearing level.
Rainville's method proved to be a somewhat cumbersome clinical tool, and in 1959, a variation of
. . . [Full Text PDF of this Article]
Author Affiliations
EVANSTON, ILL
Assistant Professor of Audiology, Northwestern University.; From the School of Speech and Department of Otolaryngology, Northwestern University.
Footnotes
Submitted for publication Jan 11, 1963.
This research was supported by Contract AF 41 (657)-418 with the School of Aerospace Medicine, United States Air Force, Brooks Air Force Base, Texas.
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