Appendix 3.

Detection Thresholds for Spectral-Temporal Masking. Normal-Hearing (NH) Data Averages and Ranges Are Shown (Averages for gap Detection Were Calculated in a Logarithmic Scale).

	CI1R	CI2R	CI3L	CI3R	CI5R	CI6L	CI7R	CI9R	CI10L	CI10R	CI11L	CI11R	CI12L	CI13L	CI15L	CI18L	NH average	NH range
Condition	Gap detection (µs)
	6.56	3.93	10.98	9.53	12.17	9.27	6.76	9.17	6.68	6.84	6.10	16.55	14.75	7.24	7.83	8.09	6.17	5.05-7.93
	Forward masking (dB)
600 Hz	−12.6	−13.1	−9.57	4.67	−13.9	−21.2	−13.8	−5.08	−23.3	−11.8	−11.0	~	−0.10	−4.66	−5.43	−28.6	−20.45	−35.5 to 3.64
800 Hz	1.32	−6.32	−1.16	4.23	8.39	−12.6	−9.40	−2.22	−13.8	−4.52	−4.88	~	1.15	−2.49	0.51	−27.2	−12.18	−29.2 to 3.88
1200 Hz	−8.15	−4.97	6.57	1.93	7.66	−15.8	−4.80	−8.75	−20.5	−1.54	−4.58	~	6.65	−1.63	1.72	−31.0	−8.25	−16.1 to 1.16
1400 Hz	−8.95	−7.71	8.63	−0.51	8.77	−21.7	0.78	−9.63	−24.2	−7.42	−4.58	~	−0.10	5.12	5.26	−25.8	−13.86	−23.1 to 1.04
	Backward masking (dB)
600 Hz	−22.9	−10.6	8.77	0.84	−8.25	−16.1	−12.5	−3.90	−27.3	−15.0	−11.9	−13.1	−1.47	−6.56	−5.35	−50.7	−23.59	−36.7 to 13.4
800 Hz	−7.26	−6.89	11.01	7.12	−2.05	−15.1	−16.7	0.23	−19.5	−12.5	−9.39	−5.56	5.77	3.06	4.35	−46.6	−18.75	−37.7 to 4.87
1200 Hz	−5.32	−12.3	10.16	10.95	4.06	6.79	−5.85	−4.28	−19.3	−8.12	−9.42	10.72	3.98	7.86	2.28	−48.3	−12.83	−29.9 to 5.53
1400 Hz	−16.2	−11.3	11.3	10.3	−2.90	8.25	−5.11	−4.28	−24.8	−9.95	−2.90	10.51	5.52	1.82	1.07	−52.3	−15.42	−35.5 to 0.92
	Tone in noise (dB)
1/12 octave	7.62	0.90	1.87	2.70	21.86	−0.02	6.62	3.08	−5.50	6.15	2.22	11.11	11.43	7.59	10.48	−10.4	2.01	−13.1 to 22.7
1/4 octave	10.11	1.72	2.70	4.77	22.66	7.85	−1.40	2.99	−4.44	8.67	−2.20	2.46	9.68	8.36	3.08	−7.92	−4.50	−18.5 to 7.26
1/2 octave	6.69	−3.51	1.78	8.33	13.64	4.23	2.16	4.97	−1.63	1.01	3.49	3.85	8.33	2.82	2.32	−4.92	−9.51	−16.1 to 1.2
1 octave	1.01	0.30	1.51	6.26	8.02	0.36	4.88	6.91	−3.57	−2.20	0.11	2.78	6.68	8.62	2.02	−7.00	−12.54	−18.4 to 6.96
	Tone on tone (dB)
600 Hz	−17.9	−20.5	−18.7	−17.5	−10.4	~	−14.9	−21.2	−29.3	−30.5	−16.0	−1.99	−14.7	−16.2	−4.02	−36.1	−25.51	−43.2 to 10.1
800 Hz	−11.5	−11.6	−6.47	−24.8	−3.94	~	−6.00	−11.4	−12.7	−14.6	−25.3	−2.93	−17.7	−11.1	−2.08	−43.0	−24.71	−36.9 to 2.43
1200 Hz	−9.70	−12.7	−17.4	−14.7	−1.66	~	−27.6	−10.2	−20.9	−13.4	−4.05	−6.55	−5.21	−2.43	−8.62	−45.3	−32.57	−53.0 to 1.49
1400 Hz	−9.82	−13.1	−16.9	−13.0	−1.93	~	−4.20	−21.9	−36.5	−22.9	−6.76	−6.47	−5.11	−3.16	−7.03	−39.7	−41.56	−70.3 to 8.21
	Formant on formant (dB)
500 Hz	−20.8	−15.5	−3.96	−8.15	−11.3	−17.4	−4.01	−0.90	−8.1	−17.9	−17.3	−17.6	−9.87	−16.8	−4.63	−20.7	−23.45	−30.9 to 18.6
2000 Hz	−26.0	−21.4	−3.90	−7.03	−13.9	−23.6	−13.2	−14.3	−23.9	−23.5	−14.8	−3.25	−5.53	−3.78	−22.2	−24.5	−15.33	−25.2 to 8.23

Note: CI = cochlear implant.