The correct answer is BIf the pathology involves more damage over inner versus outer hair cells, its effect on signal processing and the amount of distortion during signal processing would likely be greater and higher, because 95% of the auditory nerve fibers carry information from the inner hair cells while only about 5% of auditory nerves innervate the outer hair cells.
The rollover phenomenon, defined as the decay of the speech discrimination score with increased stimulus intensity, is of historical interest only. When present, this finding is indicative of a retrocochlear lesion: however, the sensitivity of this test is very low.
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Karnataka PGET 2007 MCQs
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