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. Author manuscript; available in PMC: 2021 Oct 26.
Published in final edited form as: Laryngoscope. 2013 May 14;123(12):E109–E115. doi: 10.1002/lary.24174

Fig. 5.

Fig. 5.

Example of typical auditory brainstem response (ABR) recordings. (A) Baseline ABR recording. Threshold was determined to be 36 dB SPL. There are typically five distinct waves between 1 and 6 milliseconds. (B) Example of 2 weeks postoperative ABR recording. Threshold was determined to be 48 dB SPL. (C) Preservation of ABR responses 2 weeks following round-window electrode implantation. Substantial residual hearing is preserved. Nonetheless, the mean implanted ear threshold is significantly higher than the mean preoperative threshold and the mean threshold in the contralateral ears (*P < .01, analysis of variance with post hoc Kruskal-Wallis analysis).