Table 2.

A+B: Main effect of condition for A) oxyhemoglobin ([O₂Hb]) and B) deoxyhemoglobin ([HHb]). Channels 1–6 belong to the bilateral supplementary motor area (SMA), whereas channels 7–18 are belonging to the bilateral primary somatosensory cortex (S1). The subscript ‚ All’ means that all responders and nonresponders were included for analysis, whereas in the ‚ responders’ group a preselection took place. Shown are significant channels as well as tendencies, both corrected for multiple comparisons by applying false discovery rate (FDR) correction (q < 0.05)

A
	Channel no.	[O2Hb]All			[O2Hb]Responders
		p uncorrected	q (FDR)	χ2	p uncorrected	q (FDR)	χ2
SMA	1
	3
	4				.018	.0304	8.042
	5	.001	.016	13.3	.003	.016	11.645
	6	.004	.02	11.1	.015	.03	8.444
S1	7				.047		6.136
	8
	9	.024		7.5	.019	.0304	7.875
	11	.043		6.3	.010	.03	9.220
	12	.015	.048	8.4	.000	.000	15.460
	13
	14	.035	.08	6.7	.013	.03	8.667
	15				.033	.048	6.821
	16				.014	.03	8.522
	17	.005	.02	10.8	.000	.000	15.216
	18	.002	.016	12.1	.009	.03	9.418

B
Region	Channel no.	[HHb]All			[HHb]Responders
		p uncorrected	q (FDR)	χ2	p uncorrected	q (FDR)	χ2
SMA	1	.004		11.1	.033		6.837
	3
	4
	5				.006		10.383
	6
S1	7
	8
	9	.024		7.5
	11
	12
	13
	14
	15
	16
	17
	18				.017		8.167