Figure 2: Normalized representation of the spread of excitation measured during stimulation of electrode 13. Normalization was performed individually to the ECAP amplitude during masking stimulation of electrode 14. The normalized ECAP amplitude curves of the electrode types “Contour Advance™” (white, N=19) and “Slim Straight” (grey, N=15) are shown separately above the stimulation position of the masking pulse. The boxes show median and quartiles. The whiskers show the twofold interquartile range.