Figure 10.

Effect of noise exposure on ABR pure tone thresholds in implanted ears over time. Mean frequency-specific hearing thresholds of the left (implanted and noise affected) ears are illustrated with standard deviation. Where the hearing threshold could not be identified up to the maximum sound stimulus level of 100 dB SPL (85 dB SPL for 40 kHz), the threshold was defined as 110 dB SPL or 95 dB SPL for 40 kHz. Day −7 is displayed in orange, day 0 before noise trauma in blue, day 0 post noise trauma in green, day 1 in purple and day 7 in pink.