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Figure 3. Amplitude-level functions obtained to a 1 kHz tone burst before and 24 h post-exposure (105 dB SPL, 2.8 kHz, 2 h). (A) CAP recorded from the round window. (B) Evoked response amplitudelevel function from the IC. The exposure caused a slight, temporary shift at 1 kHz. Note the large decrease in the amplitude of the CAP. The evoked response from the IC is reduced in amplitude at low intensities, but its amplitude grows at an abnormally rapid rate at high intensities resulting in a response that is larger than normal.

Figure 3. Amplitude-level functions obtained to a 1 kHz tone burst before and 24 h post-exposure (105 dB SPL, 2.8 kHz, 2 h). (A) CAP recorded from the round window. (B) Evoked response amplitudelevel function from the IC. The exposure caused a slight, temporary shift at 1 kHz. Note the large decrease in the amplitude of the CAP. The evoked response from the IC is reduced in amplitude at low intensities, but its amplitude grows at an abnormally rapid rate at high intensities resulting in a response that is larger than normal.