Table 4. The correlations between the level of inactivation in the right prefrontal region and the behavioural performance at the inhibition Task.

	The oxy-Hb concentration in the right prefrontal cortex
Item	r	P
No-go blocks
Comission errors	−0.12	0.403
Omission errors	−0.147	0.303
RT during No-go blocks (ms)	−0.083	0.568
Incongruent blocks
Reaction errors of incongruent blocks	−0.108	0.455
RT during incongruent blocks (ms)	−0.043	0.766

RT: reaction time. * P<0.05; ** P<0.01; *** P<0.001; n.s. P>0.05.