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KENNETH S. BURKE, AB; CAPT JAMES E. CRESTON, MC; ARTHUR J. MARSH; R. EDWIN SHUTTS, PhD

Arch Otolaryngol. 1964;80(2):155-159.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Introduction

The threshold measurement of hearing by means of bone conduction has presented problems from the beginning because of lack of standards and because of confusion over the amount of masking to be used in the contralateral ear. A few years ago a modification of the Rainville technique, known as the Sensorineural Acuity Level (SAL) test, was introduced as a substitute for standard bone-conduction audiometry. Basically, the SAL measures cochlear reserve by comparing threshold shift of a subject under two conditions of tone presentation with an established shift norm. The two conditions of tone presentation are (1) presentation of a pure tone by means of ear phones, with no masking, and (2) presentation of the same tone by the same means with a specified amount of white noise masking introduced through a bone-conduction oscillator placed in the center of the forehead.

The measurement of cochlear reserve by means of the . . . [Full Text PDF of this Article]

Author Affiliations
USA; SP/7, USA; WASHINGTON. DC

Research Psychologist, Bioacoustics Section (Mr. Burke), Director (Capt Creston), Supervisor, Bioacoustics Section (Mr. Marsh), and Assistant Director, (Dr. Shutts), Army Audiology and Speech Center, Walter Reed General Hospital, Walter Reed Army Medical Center.

Footnotes
Submitted for publication Nov 15, 1963.

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