Table 4.

Associations between behavioural measures and cortical activity as observed in HbO–HbR difference (negatively correlated HbO–HbR pairs only). Substantial associations (i.e. HPD does not contain 0) marked in bold, trends (i.e. 0 in tail of HPD) marked in italics. β = estimate; HPD = 95% highest posterior density region.

ROI	block type	group	reaction times		commission errors
			β	HPD	β	HPD
LIFG	AllGo	Control	−0.01	[−0.09, 0.08]	−0.26	[−0.94, 0.53]
		Synchronized	0.08	[−0.01, 0.17]	0.06	[−0.41, 0.53]
	Mixed	Control	0.05	[−0.04, 0.14]	−0.20	[−0.45, 0.04]
		Synchronized	0.13	[0.04, 0.21]	−0.53	[−0.91, −0.14]
LPFC	AllGo	Control	−0.09	[−0.16, −0.01]	−0.44	[−1.08, 0.17]
		Synchronized	0.04	[−0.02, 0.12]	0.29	[−0.12, 0.70]
	Mixed	Control	−0.01	[−0.09, 0.07]	0.01	[−0.27, 0.26]
		Synchronized	0.11	[−0.01, 0.22]	−0.27	[−0.77, 0.23]
MPFC	AllGo	Control	−0.03	[−0.10, 0.04]	−0.16	[−0.74, 0.45]
		Synchronized	0.04	[−0.03, 0.11]	0.11	[−0.34, 0.58]
	Mixed	Control	0.01	[−0.05, 0.07]	−0.03	[−0.29, 0.20]
		Synchronized	0.08	[0.00, 0.17]	−0.23	[−0.66, 0.22]
RPFC	AllGo	Control	−0.07	[−0.15, 0.01]	−0.34	[−1.00, 0.30]
		Synchronized	0.00	[−0.05, 0.05]	−0.01	[−0.40, 0.38]
	Mixed	Control	−0.03	[−0.11, 0.05]	0.07	[−0.17, 0.30]
		Synchronized	0.04	[−0.05, 0.12]	−0.03	[−0.46, 0.42]
RIFG	AllGo	Control	−0.01	[−0.11, 0.09]	−0.14	[−0.94, 0.64]
		Synchronized	0.09	[0.05, 0.14]	0.23	[−0.12, 0.60]
	Mixed	Control	0.06	[−0.01, 0.14]	−0.29	[−0.53, −0.04]
		Synchronized	0.12	[0.00, 0.24]	−0.44	[−1.00, 0.10]