Identification of single- and dual-component electrode trajectories by multichannel cochlear implant patients

Identification of single- and dual-component electrode trajectories was conducted on three nucleus multichannel cochlear implant patients. The electrode trajectories consisted of 50 ms of electrode transitions (apical-to-basal/basal-to-apical) in the form of steps and glides followed by a steady-state electrode pair. The results indicate that: (1) no significant improvement in identification performance was obtained by increasing the current levels of the transitional electrode pairs; (2) the identification performance for trajectories with step electrode transitions was better than or equal to that for trajectories with glide electrode transitions; and (3) identification performance for the glide electrode trajectories encoding F2 information was not significantly affected by the addition of a second electrode trajectory encoding F1 information