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case with abnormal tone decay and recruitment as measured by ABLB (auto) test | Journal of All India Institute of Speech and Hearing

ISSN


ISSN

Vol 7 No 1 (1976)
Article

case with abnormal tone decay and recruitment as measured by ABLB (auto) test: typical or atypical?

How to Cite
MN, V. (1). case with abnormal tone decay and recruitment as measured by ABLB (auto) test. Journal of All India Institute of Speech and Hearing, 7(1), 89-96. Retrieved from http://203.129.241.91/jaiish/index.php/aiish/article/view/487

Abstract

A case of abnormal tone decay demonstrating recruitment is reported. If we accept that recruitment is an artifact, the findings of this case are typical of ABLB {auto presentation) test. On the other hand, if vie consider that recruitment is a fact the findings of this case are atypical of ABLB test indicating co-existence of the two lesions viz. cochlear and retrocochlear. If we accept that recruitment is an artifact, ABLB {auto) test is not a useful test in differential diagnosis of cochlear Vs. retrocochlear as recruitment measured by ABLB {auto) test is expected in all SN loss cases irrespective of tone decay provided factors like crossover, diplacusis, pulse rate and error of judgement are controlled.

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