Auditory brainstem responses predict auditory nerve fiber thresholds and frequency selectivity in hearing impaired chinchillas

► ABR thresholds increase following noise-induced hearing loss in chinchillas. ► ABR wave I amplitude at equal stimulus SPL decreases, and latency at equal SL decreases. ► ABR threshold and amplitude shifts correlate with AN-fiber threshold elevation. ► ABR latency shifts correlate with reductions in AN-fiber frequency selectivity. ► ABRs can predict changes in cochlear sensitivity and frequency selectivity.