Table 1.
Participant demographics and clinical characteristics.
Fig 1.
Electrode montage for CAEP recording.
Active electrode at the vertex (Cz), reference on the mastoid contralateral to the CI and the ground placed at the forehead. Electroencephalogram (EEG) electrodes were used for the experiment.
Fig 2.
Visual representation of the testing protocol and the participants breakdown forming the four groups.
Fig 3.
Average waveforms for the four speech tokens for the subjectively optimised and objectively optimised groups.
The black line represents the group average waveform. The light grey lines represent group mean ± standard deviation.
Table 2.
Distribution of participants who had absent CAEP for each speech token.
Table 3.
Distribution of participants who had CAEP response absent for one, two, three or four speech tokens.
Fig 4.
(A) Percentage of CAEP responses for the four speech tokens obtained from the subjectively non-optimised group. (B) Percentage of CAEPs obtained for each speech token post-CAEP guided mapping.
Fig 5.
(A) Difference in speech perception scores between the subjectively optimised group and the subjectively non-optimised group. (B) Difference in speech perception scored between the objective optimised group pre-CAEP to post-CAEP.