Table 2 Latencies and amplitudes of ERP components to target stimuli in controls and schizophrenia

Site

Controls

Schizophrenia

Controls

Schizophrenia

F3

139.45 ± 21.76

141.46 ± 14.05

−13.48 ± 7.99

−9.18 ± 3.42

Fz

140.91 ± 21.14

147.02 ± 27.97

−12.81 ± 5.02

−8.63 ± 3.89*

F4

140.24 ± 19.10

143.72 ± 20.69

−11.50 ± 4.09

−8.55 ± 4.62

C3

139.14 ± 21.19

146.22 ± 26.66

−12.60 ± 4.41

−9.96 ± 3.38

Cz

137.74 ± 17.17

144.21 ± 27.19

−14.00 ± 6.06

−9.52 ± 3.60*

C4

138.35 ± 16.93

144.27 ± 29.15

−12.18 ± 4.60

−9.18 ± 3.57*

P3

132.19 ± 17.84

140.55 ± 30.68

−7.27 ± 2.79

−5.74 ± 2.58

Pz

133.53 ± 18.37

141.77 ± 35.92

−9.04 ± 3.45

−5.34 ± 2.65**

P4

136.40 ± 19.74

139.88 ± 27.93

−7.42 ± 2.55

−4.93 ± 2.74*

Controls

Schizophrenia

Controls

Schizophrenia

F3

220.48 ± 27.61

225.81 ± 13.90

0.29 ± 4.57

1.84 ± 4.76

Fz

218.95 ± 27.64

225.57 ± 21.76

0.56 ± 6.98

2.15 ± 5.40

F4

219.38 ± 28.54

225.45 ± 21.93

0.48 ± 5.78

0.83 ± 4.49

C3

223.71 ± 28.28

229.54 ± 16.73

1.51 ± 6.63

2.85 ± 5.90

Cz

223.35 ± 33.24

229.05 ± 21.91

3.72 ± 10.13

4.75 ± 7.85

C4

226.28 ± 33.57

229.60 ± 21.26

1.69 ± 6.86

1.97 ± 5.33

P3

218.77 ± 29.20

230.63 ± 16.16

3.06 ± 4.93

2.71 ± 4.88

Pz

218.77 ± 28.97

223.92 ± 21.44

4.84 ± 6.91

5.33 ± 4.61

P4

222.98 ± 31.98

225.38 ± 22.96

2.50 ± 5.00

2.59 ± 5.19

Controls

Schizophrenia

Controls

Schizophrenia

F3

243.83 ± 38.62

269.53 ± 22.37*

−0.88 ± 4.58

−2.39 ± 5.65

Fz

243.40 ± 37.07

270.57 ± 20.78*

−1.23 ± 7.39

−2.01 ± 6.81

F4

245.66 ± 35.07

267.82 ± 25.89

−0.64 ± 6.02

−2.90 ± 6.69

C3

242.79 ± 38.83

268.98 ± 23.84*

0.81 ± 6.42

−0.08 ± 4.73

Cz

243.40 ± 38.78

272.89 ± 31.77*

2.67 ± 9.83

1.09 ± 7.51

C4

241.88 ± 35.60

265.32 ± 23.57*

1.32 ± 6.68

−0.62 ± 5.65

P3

242.97 ± 39.60

266.05 ± 22.88

2.58 ± 5.54

0.12 ± 4.59

Pz

246.45 ± 35.50

269.96 ± 20.53

3.97 ± 7.69

2.08 ± 4.10

P4

244.19 ± 39.32

264.35 ± 25.74

2.01 ± 5.50

0.25 ± 5.05

Controls

Schizophrenia

Controls

Schizophrenia

F3

340.39 ± 19.76

333.29 ± 24.25

10.71 ± 9.06

4.85 ± 5.30*

Fz

334.29 ± 21.32

335.00 ± 24.84

14.19 ± 6.63

6.10 ± 6.37**

F4

336.79 ± 20.98

335.42 ± 29.35

12.84 ± 5.12

5.50 ± 6.12**

C3

330.57 ± 28.50

324.07 ± 26.16

11.88 ± 5.81

4.18 ± 4.05**

Cz

323.36 ± 36.69

320.84 ± 27.69

14.54 ± 7.98

5.61 ± 4.60**

C4

328.80 ± 31.31

329.26 ± 32.19

12.88 ± 5.58

4.96 ± 4.43**

P3

325.26 ± 29.55

328.16 ± 23.97

11.07 ± 4.13

4.70 ± 4.84**

Pz

322.14 ± 31.82

328.47 ± 30.16

13.67 ± 5.46

6.16 ± 4.00**

P4

330.08 ± 27.20

330.24 ± 34.17

10.81 ± 4.49

5.18 ± 3.67**