Fig. 4.

Loudness adaptation comparison between monopolar and bipolar stimulation mode as a function of time in seconds at stimulation rate of 991 Hz. The left column represents the monopolar stimulation mode at electrode pair (8,0) and the right column represents the bipolar stimulation mode at electrode pair (7,8). CI-2, CI-3 and CI-5 are shown in three rows. Within each panel, circles, triangles, and squares represent low, medium, and high stimulus levels, respectively. The lines show the linear regression fit by Eq. 2.