Table 5.

Results of ROC analyses for the N200 and P300 ERP components.

ERP	Cut point values	Specificity	Sensitivity	Accuracy
Latency (ms)
N200 Fz	225	0.84	0.67	0.82
Cz	224	0.84	0.66	0.82
Pz	221	0.84	0.67	0.82
P300 Fz	343	0.86	0.71	0.82
Cz	344	0.91	0.67	0.82
Pz	349	0.91	0.57	0.81
Amplitude (uV)
P300 Fz	4.71	0.8	0.57	0.71
Cz	5.23	0.77	0.66	0.73
Pz	5.32	0.82	0.66	0.75

ERP event-related potential, Fz frontal region, Cz central region, Pz parietal region.