Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials

Table 1

Amplitudes of P300 and LPP components are summarized (microvolt).

Channel	P300 (Food) mean/std	P300 (Non-Food) mean/std	p	LPP (Food) mean/std	LPP (Non-Food) mean/std	p
Fp1	1.205/1.144	1.623/1.119	0.3695	2.315/1.142	2.114/1.091	0.7773
Fp2	-0.027 / 1.172	0.054/1.135	0.8795	1.020/1.171	0.445 /1.138	0.3008
F3	-6.537/1.155	-6.286/ 1.14	0.5663	-5.781/ 1.173	-5.822 /1.142	0.9162
Fz	7.298/ 1.008	7.462 / 1.001	0.7081	6.812 / 1.016	6.413 / 0.992	0.3246
F4	0.721/1.014	0.676 /1.019	0.9343	1.368 / 1.026	1.438/ 1.006	0.879
P3	4.107/ 1.008	4.461/ 0.989	0.3675	4.955 / 1.030	5.054/ 1.015	0.8533
P4	-15.839 / 1.282	-15.967/1.3	0.8282	-15.452/ 1.3	-14.816 / 1.329	0.2634
Pz	-8.574 / 1.186	-8.037/ 1.193	0.3823	-8.047/ 1.2	-8.468 / 1.197	0.4037
C3	2.556 / 0.960	3.079 / 0.954	0.2059	2.109 / 0.964	1.722 / 0.963	0.485
C4	-1.077 /0.946	-1.092/ 0.932	0.9672	-1.349 / 0.955	-1.37/0.938	0.9524
Cz	7.233 /0.963	7.405 /0.949	0.7175	6.215 / 0.964	6.177 / 0.940	0.9365
O1	1.193 / 0.999	0.899 / 0.996	0.3825	0.657 / 1.006	0.739 /1.035	0.8176
O2	4.099 / 0.982	3.856 / 0.989	0.5896	3.194 / 0.990	3.286 / 0.997	0.8204
Oz	5.218 / 0.952	4.275 /0.943	0.0122	4.752 /0.958	4.681 /0.953	0.8566
T7	-1.646 / 1.187	-2.662 / 1.151	0.0394	-2.08 / 1.19	-1.683 / 1.192	0.5251
T8	0.069/ 1.171	0.254 / 1.123	0.7408	-0.688 / 0.091	1.149 / 1.185	0.2419