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. 2022 Jul 22;16:915302. doi: 10.3389/fnins.2022.915302

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Copyright © 2022 Walia, Shew, Lefler, Kallogjeri, Wick, Holden, Durakovic, Ortmann, Herzog and Buchman.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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There was a strong linear correlation between apical insertion angle and cochlear diameter for both perimodiolar and lateral wall electrodes. The dotted lines highlight the apical insertion angle and cochlear diameter where the electrode sweep results in a maximum amplitude CM at a more basal electrode than the most-apical one for 500-Hz stimulus frequency. As highlighted in gray, a cochlear diameter less than 9.5 mm and an apical insertion angle greater than 350 degrees may result in the most-apical electrode crossing the CF place for 500-Hz.