Table 2.

Latencies and amplitudes of the ACC responses elicited by two levels of change in each acoustic dimension for individual subjects.

	Gap Duration (msec)					Frequency Increment (Hz)					Intensity Increment (dB)
	100		Threshold			100		Threshold			8		Threshold
Subject	N1 latency (ms)	N1-P2 amplitude (μV)	N1 latency (ms)	N1-P2 amplitude (μV)	Subject	N1 latency (ms)	N1-P2 amplitude (μV)	N1 latency (ms)	N1-P2 amplitude (μV)	Subject	N1 latency (ms)	N1-P2 amplitude (μV)	N1 latency (ms)	N1-P2 amplitude (μV)
S1	165.1	1.57	83.1	1.67	S1	110	3.47	97	1.86	S1	105.3	4.02	124.5	1.08
S2	193.1	6.23	90.5	1.46	S2	94	4.84	122	1.62	S2	115.11	1.79	136.5	0.9
S3	204.9	4.31	110.7	0.34	S4	116	1.51	185	0.66	S5	103.12	3	122.1	0.77
S8	172.9	2.60	102.3	2.35	S8	106.5	1.85	133.5	0.42	S7	137.1	3.10	142.3	1.18
S10	191	2.74	151	1.26	S9	97.9	3.53	92.9	0.27	S6	102.9	1.97	158.9	1.06
S6	217.1	4.19	91.7	0.93	S13	135	3.75	148	1.37	S11	125.53	4.63	134.9	3.50
S12	225	2.59	172	1.62	S17	92.3	3.41	109.1	0.57	S14	138	3.56	149	2.21
S16	201	3.93	82	2.71	S18	103	3.94	130	2.21	S15	120	6.17	139	1.81
S20	196	5.49	112	1.24	S19	90	6.85	152	1.27	S22	117	2.5	142	1.49
S23	224.5	2.30	108.9	0.75	S21	109	1.84	122	0.55	S24	98	4.99	117	2.67
S25	117.1	5.37	87.7	3.6	S25	120.9	4.77	133.9	1.82	S25	126.1	5.36	133.9	3.05
S26	112.3	3.89	150.1	0.68	S26	138.1	2.40	143.5	1.43	S26	120.5	3.18	141.5	0.85
Mean (SEM)	202.42 (5.72)	3.77 (0.42)	108.98 (8.61)	1.62 (0.26)	Mean (SEM)	109.39 (4.56)	3.51 (0.44)	131.16 (7.41)	1.18 (0.19)	Mean (SEM)	98.73 (0.37)	3.68 (0.40)	136.8 (3.67)	1.71 (0.17)