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May 1970

Forward vs Reversed Bekesy Tracings

Author Affiliations

Oulu, Finland
From the Department of Otolaryngology, Oulu University, Finland.

Arch Otolaryngol. 1970;91(5):449-452. doi:10.1001/archotol.1970.00770040643010

Sixteen normal ears and 231 ears with sensorineural deafness were studied by forward and reverse sweep continuous-tone Bekesy audiometry. In normal ears, the tracings overlapped and this was also generally true in clinical material for cochlear deafness with loudness recruitment and slight-tone (less than 30 db) decay.

Abnormal tracings were seen more frequently in cases with lesions in the brain-base area including the auditory nerve and cerebellum. Poor reverse tracings were associated with a part of the cases with abnormally high-tone decay and incomplete or absent loudness recruitment.

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