Instructional Level: Advanced
Cochlear synaptopathy secondary to noise exposure and aging may be a contributing factor to speech-in-noise listening difficulties. Several animal studies have established that threshold-focused audiologic evaluations do not detect cochlear synaptopathy. Suprathreshold, signal-in-noise electrophysiology may reveal underlying neural pathology, provide answers to patients, and guide treatment decisions. This presentation will review recent research involving individuals with history of recreational and/or occupational noise exposure, and demonstrate the use of signal-in-noise electrocochleography as a clinical tool for diagnosis of cochlear synaptopathy.