Fig. 8.

ECAP-FM and ECAP-ICA waveform correlations. For each stimulation electrode, correlation coefficients are plotted as a function of stimulus level. The grey areas highlight correlation coefficients with magnitude higher than 0.8 - i.e. strong similarity between ECAP-FM and ECAP-ICA. A negative co-efficient signifies that the ECAP-ICA waveform was inverted relative to the ECAP-FM waveform. Note that electrode 21, instead of 22, was used for S3 and S6.