Promontory recording of click-evoked auditory nerve potentials is the most accurate objective test of cochlear function available today. As a truly diagnostic clinical test, however, its use is limited to a small group of problem cases, usually children with multiple diagnostic problems, inasmuch as most hearing losses can be measured in other ways. High frequencies are more accurately measured than those below about 2 kHz.
SimmonsFB: Human auditory nerve responses: A comparison of three commonly used recording sites. Laryngoscope (in press)
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