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Letter to the Editor

Letter to the Editor 0360-9294/78/0305-0227$02.~/0 JOURNAL OF THE AMERICAN AUDIOLOGY SOCIETY Vol. 3. No. 5 Copyright 0 1978 by The Williams & Wilkins Co. Printed in U.S.A. A disagreement appears to exist in the literature vidual reflex threshold. This is how it orig- concerning the proper definition of pathological inally was expressed and also how it since reflex decay. Current practice (Jerger, 1975) seems has been used on this side of the Atlantic.” to indicate that the criteria should be a 50% reduc- One of the characteristics of stapedius reflex decay tion in reflex amplitude in 10 sec or less. However, is its extreme sensitivity and, unfortunately, its Anderson et al. (1970), who performed the pi- false positives. Considering only the first 5 sec of oneering work in stapedius reflex decay, state that the 10-sec reflex decay trace as diagnostically sig- nificant should reduce considerably the number of a reflex decay is pathological when the reflex false positives for those clinicians who are cur- amplitude decays 50% or greater in five sec or less. rently looking at the full 10 sec. For resolution of this controversy, I turned to Prof. Henry Anderson. The question I posed to Prof. References Anderson was: Anderson, H., B. Barr, and E. Wedenberg. 1970. The “Is the proper definition of pathological early detection of acoustic turnours by the stapedius reflex decay a 50% or greater reduction in reflex test. p. 278. in G. E. W. Wolstenholme, and reflex amplitude within 5 sec (as you stated J. Knight eds. Sensorineural Hearing Loss. J. & A. in Sensorineural Hearing Loss, cited earlier) Churchill, London. Jerger, J., Diagnostic use of impedance measures. 1975. or 10 sec as appears to be current prac- p. 160. in James Jerger, ed. Handbook of Clinical tice?” Impedance Audiometry. American Electromedics. In Dr. Anderson’s response he stated: Morgan Press, Dobbs Ferry, N. Y. “The correct description is exactly as you Alan 1. Segal quote in your letter: 50% response amplitude Audiologist reduction in less than 5 sec for stimulation St. Joseph’s Hospital of Parkersburg, West Virginia with 500 and lo00 Hz at 10 dB above indi- ERRATUM Hearing Aid Quality Judgments. 1978. Jerry L. Punch. J. Am. Aud. SOC. 3, 179-188. The section on Method, column 1 on page 182. The frequency response of the earphone was flat, within +3 dB, between 200 and 4000 Hz, as specified in the Zwislocki flat-plate couples (Zwislocki, 1970, 197 1). It should have read: The frequency response of the earphone was flat, within +3 dB, between 200 and 4500 Hz, as specified in the Zwislocki “ear-like” coupler. . . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the American Audiology Society Wolters Kluwer Health

Letter to the Editor

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Copyright
Copyright 1978 by The Williams & Wilkins Co.
ISSN
0360-9294

Abstract

0360-9294/78/0305-0227$02.~/0 JOURNAL OF THE AMERICAN AUDIOLOGY SOCIETY Vol. 3. No. 5 Copyright 0 1978 by The Williams & Wilkins Co. Printed in U.S.A. A disagreement appears to exist in the literature vidual reflex threshold. This is how it orig- concerning the proper definition of pathological inally was expressed and also how it since reflex decay. Current practice (Jerger, 1975) seems has been used on this side of the Atlantic.” to indicate that the criteria should be a 50% reduc- One of the characteristics of stapedius reflex decay tion in reflex amplitude in 10 sec or less. However, is its extreme sensitivity and, unfortunately, its Anderson et al. (1970), who performed the pi- false positives. Considering only the first 5 sec of oneering work in stapedius reflex decay, state that the 10-sec reflex decay trace as diagnostically sig- nificant should reduce considerably the number of a reflex decay is pathological when the reflex false positives for those clinicians who are cur- amplitude decays 50% or greater in five sec or less. rently looking at the full 10 sec. For resolution of this controversy, I turned to Prof. Henry Anderson. The question I posed to Prof. References Anderson was: Anderson, H., B. Barr, and E. Wedenberg. 1970. The “Is the proper definition of pathological early detection of acoustic turnours by the stapedius reflex decay a 50% or greater reduction in reflex test. p. 278. in G. E. W. Wolstenholme, and reflex amplitude within 5 sec (as you stated J. Knight eds. Sensorineural Hearing Loss. J. & A. in Sensorineural Hearing Loss, cited earlier) Churchill, London. Jerger, J., Diagnostic use of impedance measures. 1975. or 10 sec as appears to be current prac- p. 160. in James Jerger, ed. Handbook of Clinical tice?” Impedance Audiometry. American Electromedics. In Dr. Anderson’s response he stated: Morgan Press, Dobbs Ferry, N. Y. “The correct description is exactly as you Alan 1. Segal quote in your letter: 50% response amplitude Audiologist reduction in less than 5 sec for stimulation St. Joseph’s Hospital of Parkersburg, West Virginia with 500 and lo00 Hz at 10 dB above indi- ERRATUM Hearing Aid Quality Judgments. 1978. Jerry L. Punch. J. Am. Aud. SOC. 3, 179-188. The section on Method, column 1 on page 182. The frequency response of the earphone was flat, within +3 dB, between 200 and 4000 Hz, as specified in the Zwislocki flat-plate couples (Zwislocki, 1970, 197 1). It should have read: The frequency response of the earphone was flat, within +3 dB, between 200 and 4500 Hz, as specified in the Zwislocki “ear-like” coupler. . .

Journal

Journal of the American Audiology Society – Wolters Kluwer Health

Published: Mar 1, 1978

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