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Figure 3. Average evoked potential threshold shifts for BSO-treated right ears and saline-treated left ears after exposure to a 105 dB SPL 4 kHz OB noise for 4 h. Twelve animals were exposed to the noise; two of these were sacrificed after testing on day 4. Threshold shifts were significantly different between BSO and control ears at 4, 6 and 8 kHz, four days after noise exposure.

Figure 3. Average evoked potential threshold shifts for BSO-treated right ears and saline-treated left
ears after exposure to a 105 dB SPL 4 kHz OB noise for 4 h. Twelve animals were exposed to the noise;
two of these were sacrificed after testing on day 4. Threshold shifts were significantly different between
BSO and control ears at 4, 6 and 8 kHz, four days after noise exposure.