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. Author manuscript; available in PMC: 2012 Sep 16.
Published in final edited form as: Hear Res. 2011 Apr 22;277(1-2):20–27. doi: 10.1016/j.heares.2011.03.017

Figure 7.

Figure 7

Representative examples of (a) NRT and (b) EABR waveforms evoked from two animals chronically implanted with HL electrode arrays. Both set of responses were evoked using biphasic current pulses (25 µs/phase 8 µs inter-phase gap) delivered to a monopolar scala tympani electrode. The waveforms were similar in morphology to those evoked using the standard 8 Pt banded electrode array. Response thresholds remained stable over a three month monitoring period. (c) EABR thresholds immediately post implantation for the two chronically implanted animals. Thresholds to apical electrodes were generally significantly lower than more basal electrodes. Electrode 1 = most apical electrode, 14 = most basal.