Unusual Findings in a Bekesy Audiogram Details are presented of a case of acoustic neuroma in which there was a discrepancy between Bekesy sweep-frequency results and those of fixed frequency traces and a tone-decay test. A series of Bekesy fixed frequency traces produced the unexpected findings that frequencies at which adaptation does and does not occur ... Case Reports
Case Reports  |   February 01, 1972
Unusual Findings in a Bekesy Audiogram
 
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Article Information
Case Reports   |   February 01, 1972
Unusual Findings in a Bekesy Audiogram
Journal of Speech and Hearing Disorders, February 1972, Vol. 37, 132-137. doi:10.1044/jshd.3701.132
 
Journal of Speech and Hearing Disorders, February 1972, Vol. 37, 132-137. doi:10.1044/jshd.3701.132

Details are presented of a case of acoustic neuroma in which there was a discrepancy between Bekesy sweep-frequency results and those of fixed frequency traces and a tone-decay test. A series of Bekesy fixed frequency traces produced the unexpected findings that frequencies at which adaptation does and does not occur can show bizarre patterns; that the difference between adapting and nonadapting frequencies can be quite small; and that adaptation at a given frequency can vary over a short time. It is suggested that more attention be given to Bekesy fixed frequency tracings when adaptation is not displayed in sweep-frequency tracings.

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