Table.4.

The mean amplitude and latency of N1 component (average ± SD)

			Contralateral		Ipsilateral
			Valid	Invalid	Valid	Invalid
N1 amplitude (µV)	Young	Low	−2.71±0.62	−1.18±0.7	−0.39±1.05	1.19±0.87
		High	−2.83±0.54	−1.42±0.5	−1.23±1.1	0.64±0.58
	Old	Low	−2.67±0.63	−2.13±0.91	−0.36±0.7	−0.11±0.85
		High	−3.35±0.91	−2.85±0.58	−0.82±0.84	−0.41±0.96
N1 latency (ms)	Young	Low	168.38±7.95	177.48±9.17	172±10.53	190.98±7.19
		High	168.12±28.46	175.3±9.69	176.34±7.79	186.75±8.05
	Old	Low	178.37±5.89	182±7.13	190.18±10.03	187.12±8.49
		High	177.08±11.27	180.48±7.61	189.25±7.89	189.14±8.15