Correlations between bone and air conduction acuity measurements over wide frequency ranges in different types of hearing impairments

Comparisons of Auditory Steady State Response and Behavioral Air Conduction and Bone Conduction Thresholds for Infants and Adults With Normal Hearing

“…In adults, a difference between the AC and BC thresholds at the same frequency is indicative of a conductive component and is commonly called an air-bone gap (ABG; Lierle & Reger 1946;Carhart 1950). Elevated BC thresholds and the absence of an ABG indicate a sensorineural hearing loss (Lierle & Reger 1946;Carhart 1950).…”

“…In adults, a difference between the AC and BC thresholds at the same frequency is indicative of a conductive component and is commonly called an air-bone gap (ABG; Lierle & Reger 1946;Carhart 1950). Elevated BC thresholds and the absence of an ABG indicate a sensorineural hearing loss (Lierle & Reger 1946;Carhart 1950). Studies involving the assessment of BC thresholds, both physiologically (ASSR: Small & Stapells 2006ABR: Stapells & Ruben 1989;Nousak & Stapells 1992;Foxe & Stapells 1993;Vander Werff et al 2009) and behaviorally (Hulecki & Small 2011), provide evidence that there are infant-adult differences in BC sensitivity, which affect the interpretation of an ABG in infants.…”

A New Method for the Clinical Determination of Sensorineural Acuity Level (SAL)

“…At the theoretical level, unanswered questions regarding when to mask the nontest ear and how much masking to use on it are highlighted by the widely varying opinions presently existing in the field. [1][2][3][4][5][6][7][8] Rainville9 has attempted to circumvent many of these problems by approaching the measurement of sensorineural loss with an entirely new procedure. His technique can be briefly described as follows: First, the air conduction threshold is determined on the ear under test.…”

Clinical Calibration of Bone-Conduction Measurements

“…Figures 7,8, and 9 illustrate the shifts in threshold obtained by applying noise through a bone oscillator to ears with con¬ ductive deafness, mixed deafness, and sensorineural deafness, respectively.It is obvious that more experience and much data are needed before this technique attains full stature in the audiometrie…”