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Mean (±SEM) cochlear input impedance (ZC = PSV/(VStap * AStap)) as a function of frequency for the three level bands tested (blue: Low; black: Mid; red: High). Responses are superimposed onto the mean ZC from three prior reports (heavy lines in blue: Aibara et al. 2001, green: Merchant et al. 1996, and red: Nakajima et al. 2009).
