Table 1. Spatial profiling of each recording channel.

CH	Localization	Broadman area	Probability
1	Left frontopolar cortex	10	1
2	Right frontopolar cortex	10	1
3	Left frontopolar cortex	10	0.972
	Left dorsolateral prefrontal cortex	46	0.028
4	Left frontopolar cortex	10	1
5	Right frontopolar cortex	10	1
6	Right frontopolar cortex	10	0.972
	Right dorsolateral prefrontal cortex	46	0.028
7	Left dorsolateral prefrontal cortex	46	0.496
	Left frontopolar cortex	10	0.349
	Left dorsolateral prefrontal cortex	9	0.105
	Left pars triangularis Broca's area	45	0.047
	Left inferior prefrontal gyrus	47	0.003
8	Left frontopolar cortex	10	0.902
	Left dorsolateral prefrontal cortex	9	0.098
9	Right frontopolar cortex	10	0.935
	Right dorsolateral prefrontal cortex	9	0.065
10	Right frontopolar cortex	10	0.888
	Right dorsolateral prefrontal cortex	9	0.112
11	Right dorsolateral prefrontal cortex	46	0.702
	Right frontopolar cortex	10	0.298
12	Left dorsolateral prefrontal cortex	9	0.628
	Left frontopolar cortex	10	0.186
	Left dorsolateral prefrontal cortex	46	0.145
	Left includes frontal eye fields	8	0.041
13	Left dorsolateral prefrontal cortex	9	0.770
	Left frontopolar cortex	10	0.127
	Left includes frontal eye fields	8	0.103
14	Right dorsolateral prefrontal cortex	9	0.741
	Right frontopolar cortex	10	0.171
	Right includes frontal eye fields	8	0.088
15	Right dorsolateral prefrontal cortex	9	0.657
	Right frontopolar cortex	10	0.199
	Right dorsolateral prefrontal cortex	46	0.144