Table 1.

Raw and normalized P300 amplitudes

	Raw data			Normalized data
	Silent-count	Button-press	Correction	Silent-count	Button-press	Correction
Fz	9.86 (4.82)	5.93 (5.96)	7.84 (6.42)	0.67 (0.33)	0.61 (0.61)	0.73 (0.60)
Cz	14.72 (5.67)	9.74 (5.87)	10.73 (6.54)	1.00 (0.38)	1.00 (0.60)	1.00 (0.61)
Pz	14.98 (6.07)	11.82 (5.89)	11.76 (6.65)	1.02 (0.41)	1.21 (0.60)	1.10 (0.62)
F3	8.60 (4.22)	4.89 (5.44)	6.60 (5.44)	0.58 (0.29)	0.50 (0.56)	0.61 (0.51)
FTC1	7.78 (3.02)	5.02 (4.16)	5.51 (4.25)	0.53 (0.21)	0.52 (0.43)	0.51 (0.40)
C3	11.85 (4.65)	8.15 (5.00)	8.17 (5.32)	0.80 (0.32)	0.84 (0.51)	0.76 (0.50)
F4	8.89 (4.28)	5.89 (5.13)	7.03 (5.60)	0.60 (0.29)	0.61 (0.53)	0.66 (0.52)
FTC2	7.39 (2.96)	5.74 (3.69)	5.55 (4.08)	0.50 (0.20)	0.59 (0.38)	0.52 (0.38)
C4	12.56 (4.71)	9.71 (5.38)	9.17 (5.89)	0.85 (0.32)	1.00 (0.55)	0.85 (0.55)
T3	6.57 (2.01)	4.88 (2.92)	4.83 (3.36)	0.45 (0.14)	0.50 (0.30)	0.45 (0.31)
TCP1	10.96 (4.39)	8.61 (4.24)	8.09 (4.59)	0.74 (0.30)	0.88 (0.44)	0.75 (0.43)
T5	7.76 (3.75)	5.93 (3.73)	5.81 (3.96)	0.53 (0.26)	0.61 (0.38)	0.54 (0.37)
T4	6.24 (2.10)	4.36 (3.06)	3.74 (3.82)	0.42 (0.14)	0.45 (0.31)	0.35 (0.36)
TCP2	10.98 (4.27)	8.19 (4.29)	7.63 (4.86)	0.75 (0.29)	0.84 (0.44)	0.71 (0.45)
T6	7.67 (3.76)	5.22 (3.20)	5.50 (4.09)	0.52 (0.26)	0.54 (0.33)	0.51 (0.38)