TABLE 2.

Probe and masker levels

CI user	Electrode position	Probe level [dB re 1 μA]	SPM = LTM		HTM
			Φ level [dB re 1 μA]	Ѱ level [dB re 1 μA]	Φ = Ѱ level [dB re 1 μA]
U01	Middle	54.66	50.90	56.23	50.90
	Apical	53.57	54.82	57.65	54.82
U02	Middle	55.92	51.53	56.23	51.53
	Apical	54.35	51.53	54.82	51.53
U03	Middle	53.41	52.31	56.23	52.31
	Apical	52.78	51.21	56.23	51.21
U04	Middle	54.04	49.96	53.41	49.96
	Apical	51.06	50.27	53.10	50.27
U05	Middle	53.10	53.88	57.17	53.88
	Apical	52.63	52.00	54.66	52.00
U06	Middle	53.25	47.14	52.00	47.14
	Apical	50.90	44.78	49.65	44.78
U07	Apical	52.47	43.84	51.06	43.84
U08	Basala	54.98	47.61	52.31	47.61
U09	Middle	53.57	46.51	53.25	46.51
	Mean	53.38	49.89	54.27	49.89
	SD	1.35	3.23	2.38	3.23

CI cochlear implant, Φ same physical current level, Ѱ same psychophysical loudness level, SPM single-pulse masker, LTM low-rate pulse train masker, HTM high-rate pulse train masker, SD standard deviation

^aA basal electrode was used here due to difficulty detecting an eCAP response otherwise