Dead Regions in the Cochlea: Diagnosis, Perceptual Consequences, and Implications for the Fitting of Hearing Aids

摘要: Hearing impairment is often associated with damage to the hair cells in cochlea. Sometimes there may be complete loss of function inner (IHCs) over a certain region cochlea; this called “dead region”. The can defined terms range characteristic frequencies (CFs) IHCs and/or neurons immediately adjacent dead region. This paper reviews following topics: effect regions on audiogram; methods for detection and delineation based psychophysical tuning curves (PTCs) measurement thresholds pure tones “threshold equalizing noise” (TEN); effects speech perception; perception tones; implications fitting hearing aids. main conclusions are: (1) Dead relatively common people moderate-to-severe sensorineural loss; (2) cannot reliably diagnosed from (3) PTCs...