Table 2.

Stimuli and methods summary

	Experiment 1	Experiment 2
T and C measurements	Measured on individual electrodes using the pulse rate over all electrodes from each condition.
Loudness	Matched with adjustment	Set to 70% dynamic range; near loudness equality
Pulse rates	250 and 159 pps/channel	250, 720, 900, 1200, 1800 pps/channel
Pulse width / gap	75 μs/24 μs	25 μs/8 μs
Number of electrodes	1, 3, 7, 11, 21	7
Electrode separation	Multiple separations (see text)	Neighboring electrodes, every other electrode
Total reversals/ Reversals in threshold calculation	14/8	16/10

All conditions were repeated 10 times and used a modified 2AFC procedure with two-down, one-up adaptive tracking. Details are provided in the text.