Figure 3.

Psychophysical tuning curves obtained for two maskers placed symmetrically around the probe electrode and separated from that by Δx electrodes. Data are shown for five Med-El (top row) and four Advanced Bionics (bottom row) CI users. MLT = masking level at threshold; T = absolute detection thresholds for dual-electrode masker; C = most comfortable loudness level for dual-electrode masker. The level of the probe is shown by the gray dashed lines. Asterisks refer to conditions where one or more runs hit the maximum level allowed and the procedure was interrupted. dB = decibel; CI = cochlear implant.