Table 1.

Behavioral results (reaction time), ERP results (the peak latency and amplitude of N1, P2, and P3), and their statistical comparison (one-way ANOVA)

Target sensory	Unimodal target	Multimodal target			One-way ANOVA
	Mean ± SE	Bimodal A	Bimodal B	Trimodal	F value	P value
		Mean ± SE	Mean ± SE	Mean ± SE
RT (ms)
V	426 ± 13	422 ± 13	429 ± 13	421 ± 15
A	538 ± 14	555 ± 18	552 ± 14	555 ± 17
S	576 ± 18	548 ± 17	552 ± 17	545 ± 16
N1 lat. (ms)
V	140 ± 4	139 ± 4	136 ± 3	136 ± 3	0.362	0.781
A	129 ± 4	130 ± 4	127 ± 4	126 ± 4	0.2	0.9
S	142 ± 6	125 ± 5	124 ± 5	118 ± 4	4.297	0.007
N1 amp. (μV)
V	−3.4 ± 0.6	−5.4 ± 0.7	−3.6 ± 0.6	−5.5 ± 0.6	3.361	0.023
A	−10.7 ± 1	−10.9 ± 0.8	−11.3 ± 1	−11.7 ± 1	2.952	0.038
S	−2 ± 0.6	−8 ± 1	−3.8 ± 0.7	−10.1 ± 1.1	17.33	<0.001
P2 lat. (ms)
V	193 ± 5	203 ± 4	195 ± 5	201 ± 4	2.937	0.039
A	220 ± 4	224 ± 6	199 ± 5	201 ± 6	6.196	<0.001
S	215 ± 8	210 ± 5	190 ± 8	192 ± 5	3.87	0.012
P2 amp. (μV)
V	3.6 ± 1.1	6.6 ± 1.3	4.5 ± 1	7.3 ± 1.1	3.567	0.018
A	5.1 ± 1.1	6.9 ± 1.2	4.6 ± 1.1	4.8 ± 1.1	0.934	0.429
S	7.1 ± 0.8	12.6 ± 1.4	6.9 ± 1	11.6 ± 1.7	5.607	0.002
P3 lat. (ms)
V	403 ± 12	392 ± 11	394 ± 11	381 ± 10	0.681	0.565
A	455 ± 17	467 ± 21	470 ± 21	470 ± 20	0.019	0.99
S	479 ± 18	452 ± 16	455 ± 17	449 ± 19	3.703	0.015
P3 amp. (μV)
V	13.3 ± 1.7	9.9 ± 1.5	12.4 ± 1.6	10.3 ± 1.4	0.93	0.43
A	9.4 ± 1.5	8.8 ± 1.4	7.7 ± 1.1	8.1 ± 1.3	0.403	0.75
S	11.7 ± 1.2	10.6 ± 1.2	11.6 ± 1.4	9.8 ± 1.5	3.035	0.034