Table 2.

Mean ERP amplitudes and difference from 0 μV by two-tailed one sample T-tests (n = 142).

	mean (μV)	SD	95% CI	t-value	P-value
Amplitude
Early time-window
happy	−0.79	4.32	−1.50–−0.07	−2.17	0.032
sad	−0.44	4.90	−1.25–0.37	−1.07	0.287
angry	−1.13	4.35	−1.86–−0.41	−3.10	0.002
Late time-window
happy	0.94	4.42	0.20–1.67	2.53	0.013
sad	0.69	4.91	−0.13–1.50	1.67	0.098
angry	0.77	5.26	−0.10–1.64	1.74	0.083