Table 3.

Mean amplitudes of different reward conditions in 400–500 ms time windows

Measure	Real reward		Hypothetical reward
	High	Low	High	Low
Frontal	− 0.95 ± 2.55	− 1.70 ± 2.88	− 0.67 ± 3.28	− 0.55 ± 3.04
Fronto-central	− 1.11 ± 2.36	− 1.72 ± 2.20	− 0.58 ± 2.64	− 0.53 ± 2.25
Central	− 0.90 ± 2.07	− 1.32 ± 1.71	− 0.27 ± 2.22	− 0.28 ± 1.84
Centro-parietal	− 0.55 ± 1.76	− 0.86 ± 1.39	0.05 ± 2.02	0.14 ± 1.69
Parietal	− 0.40 ± 1.81	− 0.58 ± 1.53	0.12 ± 2.08	0.31 ± 1.70