Table 4.

ERBP responses in five poststimulus time epochs

Band	Time epoch		Aversive	Pleasant	Neutral
Low gamma	50–150	Mean	2.04	−0.34	−0.69
		SEM	0.6	0.39	0.33
		p		<0.001^4-150
	150–250	Mean	3.41	0.95	0.28
		SEM	0.51	0.36	0.44
		p		<0.001^4-150
	250–350	Mean	2.12	0.08	1.53
		SEM	0.28	0.52	0.44
		p		0.107
	350–450	Mean	1.94	0.45	1.1
		SEM	0.3	0.43	0.28
		p		0.096
	450–550	Mean	2.14	0.77	2.29
		SEM	0.51	0.43	0.74
		p		0.134
High gamma	50–150	Mean	0.61	0.11	−0.27
		SEM	0.38	0.29	0.73
		p		0.244
	150–250	Mean	4.52	0.7	1.16
		SEM	0.73	0.37	0.48
		p		<0.001^4-150
	250–350	Mean	2.62	0.64	1.9
		SEM	0.51	0.45	0.59
		p		0.035
	350–450	Mean	4.51	0.03	0.16
		SEM	0.58	0.31	0.27
		p		<0.001^4-150
	450–550	Mean	2.42	0.43	0.69
		SEM	0.42	0.51	0.37
		p		0.006

Mean ERBP values and SEM are shown (in decibels). pvalues were from one-way ANOVAs with a between-subject factor of emotional category (df, 2,35). In all time epochs showing significant differences among emotion categories, pairwise Tukey's HSD tests showed that there were significant differences only in contrasts with aversive stimuli.
↵F4-150 p < 0.005 was considered significant.