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. 2017 Apr 10;8:137. doi: 10.3389/fneur.2017.00137

Figure 2.

Figure 2

Auditory brainstem response audiometry (ABR) artifacts during drilling. The left panel shows the surgical drilling, and the right panel shows the synchronized ABR signal. It illustrates that surgical drilling induces ABR artifacts, making it impossible to draw any precise conclusions about the ABR signal during drilling.