Table 2.

Mean± SE amplitudes and latencies of MMN and P3a.

MMN
			Controls		Juvenile Delinquents
			Amplitude (μV)	Latency (ms)	Amplitude(μV)	Latency (ms)
Emotional Syllables	Fearful	Fz	−1.84 ± 0.35	249.7 ± 4.9	−2.39 ± 0.35	248.7 ± 4.9
		Cz	−1.79 ± 0.37	249.4 ± 4.9	−2.26 ± 0.37	239.8 ± 4.9
		Pz	−1.21 ± 0.35	245.8 ± 5.4	−1.83 ± 0.35	241.8 ± 5.4
	Sad	Fz	−1.77 ± 0.37	238.9 ± 6.2	−1.10 ± 0.37	226.5 ± 6.2
		Cz	−1.77 ± 0.39	240.0 ± 6.5	−1.11 ± 0.39	230.0 ± 6.5
		Pz	−1.20 ± 0.35	247.5 ± 7.8	−1.07 ± 0.35	236.4 ± 7.8
Non-vocal Sounds	Fearful	Fz	−2.17 ± 0.44	237.3 ± 5.6	−2.39 ± 0.44	248.6 ± 5.6
		Cz	−2.07 ± 0.38	240.4 ± 5.4	−2.35 ± 0.38	246.1 ± 5.4
		Pz	−1.63 ± 0.33	231.9 ± 6.4	−2.01 ± 0.33	239.2 ± 6.4
	Sad	Fz	−1.64 ± 0.29	243.9 ± 7.2	−1.63 ± 0.29	238.1 ± 7.2
		Cz	−1.16 ± 0.24	233.2 ± 8.4	−1.41 ± 0.24	239.7 ± 8.4
		Pz	−0.66 ± 0.22	236.3 ± 8.5	−1.22 ± 0.22	250.5 ± 8.5

P3a
			Controls		Juvenile Delinquents
			Amplitude (μV)	Latency (ms)	Amplitude(μV)	Latency (ms)
Emotional Syllables	Fearful	Fz	2.04 ± 0.39	382.9 ± 7.2	3.10 ± 0.39	379.4 ± 7.2
		Cz	2.11 ± 0.46	369.4 ± 7.5	3.25 ± 0.46	382.1 ± 7.5
		Pz	1.26 ± 0.47	375.0 ± 8.4	2.29 ± 0.47	375.7 ± 8.4
	Sad	Fz	1.79 ± 0.46	370.9 ± 7.9	3.46 ± 0.46	373.4 ± 7.9
		Cz	1.82 ± 0.43	382.3 ± 7.1	3.24 ± 0.43	367.9 ± 7.1
		Pz	1.32 ± 0.31	393.5 ± 8.5	1.91 ± 0.31	375.9 ± 8.5
Non-vocal Sounds	Fearful	Fz	4.63 ± 0.62	349.1 ± 6.5	5.60 ± 0.62	358.9 ± 6.5
		Cz	4.54 ± 0.62	349.2 ± 5.7	5.90 ± 0.62	353.6 ± 5.7
		Pz	2.39 ± 0.48	357.7 ± 6.0	3.50 ± 0.48	356.9 ± 6.0
	Sad	Fz	0.97 ± 0.49	356.6 ± 10.0	3.70 ± 0.49	381.3 ± 10.0
		Cz	1.32 ± 0.40	367.7 ± 9.1	3.33 ± 0.40	365.2 ± 9.1
		Pz	0.87 ± 0.31	376.7 ± 9.0	2.12 ± 0.31	375.1 ± 9.0