. 2016 Mar 1;10:50. doi: 10.3389/fnins.2016.00050

Table 4.

Response-locked ERP amplitudes.

	Controls	ADHD	TS	Repeated measure ANOVA			ANCOVA
Response-locked	Mean ±SD (μV)	Mean ±SD (μV)	Mean ±SD (μV)	Outcome	Group	Outcome × Group	Group	Covariates
LPC (−82 ms)
Compatible	6.37 ± 0.88	5.88 ± 0.82	8.14 ± 0.93	$F_{(2, 192)} = 26.92, p < 0.001, η_{p}^{2} = 0.22$	F_{(2, 96)} = 1.21, n.s.	F_{(4, 192)} = 2.01, p = 0.09, η $_{p}^{2} = 0.04$	F_{(2, 91)} = 1.84, n.s.	RACC F_{(1, 91)} = 8.21, p < 0.01, η $_{p}^{2} = 0.08$ ; RT F_{(1, 91)} = 16.46, p < 0.001, η $_{p}^{2} = 0.15$
Incompatible	7.46 ± 0.87	8.24 ± 0.82	10.23 ± 0.94				F_{(2, 91)} = 2.5, p = 0.08, η $_{p}^{2} = 0.05$
Error	4.41 ± 1.25	4.34 ± 1.17	5.29 ± 1.34				F_{(2, 91)} = 0.17, n.s.
Mean	6.09 ± 0.86	6.19 ± 0.81	7.79 ± 0.92
ERN (20 ms)
Compatible	4.55 ± 0.89	4.25 ± 0.84	5.71 ± 0.96	F_{(2, 192)} = 13.04, p < 0.001, η $_{p}^{2} = 0.12$	F_{(2, 96)} = 1.46, n.s.	F_{(4, 192)} = 2.09, p = 0.08, η $_{p}^{2} = 0.04$	F_{(2, 91)} = 0.74, n.s.	RT F_{(1, 91)} = 16.45, p < 0.001, η $_{p}^{2} = 0.15$ ; Age F_{(1, 91)} = 6.57, p = 0.01, η $_{p}^{2} = 0.07$
Incompatible	4.85 ± 0.90	5.28 ± 0.85	6.52 ± 0.98				F_{(2, 91)} = 0.87, n.s.
Error	1.93 ± 1.50	1.73 ± 1.40	4.24 ± 1.61				F_{(2, 91)} = 0.84, n.s.
Mean	3.77 ± 0.96	3.80 ± 0.80	5.42 ± 1.03
EARLY POSITIVITY (62 ms)
Compatible	6.47 ± 0.96	6.02 ± 0.89	7.23 ± 1.02	F_{(2, 192)} = 1.72, n.s.	F_{(2, 96)} = 1.53, n.s.	F_{(4, 192)} = 1.69, n.s.	F_{(2, 91)} = 0.41, n.s.	RT F_{(1, 91)} = 14.17, p < 0.001, η $_{p}^{2} = 0.13$ ; Age F_{(1, 91)} = 4.35, p = 0.04, η $_{p}^{2} = 0.05$
Incompatible	5.80 ± 0.98	6.12 ± 0.93	7.49 ± 1.06				F_{(2, 91)} = 0.78, n.s.
Error	5.12 ± 1.51	4.59 ± 1.41	7.15 ± 1.62				F_{(2, 91)} = 0.78, n.s.
Mean	5.81 ± 1.02	5.61 ± 0.96	7.20 ± 1.09
Pe (268 ms)
Compatible	−0.07±0.99	−1.45±0.92	−0.88±1.05	F_{(2, 192)} = 115.16, p < 0.001, η $_{p}^{2} = 0.55$	F_{(2, 96)} = 0.31, n.s.	F_{(4, 192)} = 0.12, n.s.	F_{(2, 91)} = 0.44, n.s.	RT $F_{(1, 91)} = 8.58, p < 0.01, η_{p}^{2} = 0.08$ ; Age $F_{(1, 91)} = 4.27, p = 0.04, η_{p}^{2} = 0.04$
Incompatible	−1.13±0.94	−1.31±0.88	−0.99±1.01				F_{(2, 91)} = 0.03, n.s.	FSIQ $F_{(1, 91)} = 5.39, p = 0.02, η_{p}^{2} = 0.06$ ; RACC $F_{(1, 91)} = 8.84, p < 0.01, η_{p}^{2} = 0.09$
Error	9.31 ± 1.68	8.08 ± 1.56	10.42 ± 1.79				F_{(2, 91)} = 0.48, n.s.
Mean	2.58 ± 1.01	1.93 ±.94	2.78 ± 1.08

ERP, event-related potentials; SD, standard deviation; ANOVA, analysis of variance; ADHD, attention-deficit/hyperactivity disorder; TS, Tourette syndrome; LPC, Late positive component; ERN, error-related negativity; Pe, error positivity; n.s., not significant.