A Link between the Increase in Electroencephalographic Coherence and Performance Improvement in Operating a Brain-Computer Interface

Table 1

Results of ANOVA and multiple comparison tests for each subject and training scheme in the cases when an incremental ErCoh on the contralateral centrofrontal or centroparietal areas was found.

(a) ErCoh analysis

Subject	Training	Compared sessions	Pair of electrodes		value	Multiple comparisons
1	PA	S1–S6	Cz-P3	8.88		S2, S3, S5, S6 > S1; S3, S5, S6 > S4
2	FES	S1–S4	C3-P3	97.73		S2, S3, S4 > S1
3	FES	S1–S4	C3-P3	3.74		S2, S3, S4 > S1
	V	S1–S6	C3-F3	247.35		S5 > S4, S6 > S3 > S1 > S2
			C3-P3	32.54		S5, S6 > S4 > S3, S2, S1; S3 > S1
	NA	S1–S5	C3-F3	21.91		S3, S4, S5 > S1, S2
			Cz-P3	13.54		S3, S5 > S1, S2; S4 > S1
4	NA	S1–S6	C3-F3	23.51		S5, S4 > S1; S3 > S1, S2, S4, S5, S6
5	FES	S1–S4	C3-F3	12.57		S3, S4 > S1, S2
6	FES	S1–S5	C3-F3	15.23		S4, S5 > S1, S2; S5 > S3

(b) Accuracy analysis

Subject	Training	Compared sessions		value	Multiple comparisons
1	PA	S1–S6	3.44	0.0146	S2, S3, S5, S6 > S1
2	FES	S1–S4	2.27	0.1060
3	FES	S1–S4	4.38	0.0159	S4 > S1
	V	S1–S6	18.08		S4, S5, S6 > S1, S2, S3
	NA	S1–S5	0.4174	0.7944
4	NA	S1–S6	5.36	0.0013	S3, S4, S6 > S2
5	FES	S1–S4	18.81		S3, S4 > S1, S2
6	FES	S1–S5	3.43	0.0200	S4, S5 > S2