Table 3.

Signal reliability at group level for the ROI and across the channels within the ROI. Here, ${\mathrm{ICC}}_{\text{average}}$ is a measure of intersession reliability; ${\mathrm{ICC}}_{\text{single}}$ is a measure of intrasession reliability (across participants). At ROI-level, ICCs were calculated using the average of the maximum ${\mathrm{HbO}}_2$ change across all ROI channels per participant. At channel level, ICCs were calculated using the average of the maximum ${\mathrm{HbO}}_2$ change per participant at each channel.

	ROI
	${\mathrm{ICC}}_{\text{average}}$	${\mathrm{ICC}}_{\text{single}}$
ROI	0.461	0.299
Channel 7	0.276	0.160
Channel 8	0.542	0.372
Channel 9	0.415	0.261
Channel 11	$-0.338$	$-0.145$
Channel 12	0.633	0.463