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Table 1 The Amplitude Differences of Auditory and Visual Evoked-Related Potentials With and Without Counting Groups Between Control and Schizophrenic Patients

From: A comparative study on long-term evoked auditory and visual potential responses between Schizophrenic patients and normal subjects

 

Auditory With Counting

Auditory Without Counting

Visual With Counting

Visual Without Counting

 

Control

(n = 40)

Schizophrenia

(n = 43)

P

Control

(n = 40)

Schizophrenia

(n = 43)

P

Control

(n = 40)

Schizophrenia

(n = 43)

P

Control

(n = 40)

Schizophrenia

(n = 43)

P

N100

            

Frontal

-2.93 (1.69)

-2.02

(1.72)

<.05

-2.94

(1.76)

-2.23

(2.01)

NS

-3.69

(1.52)

-2.46

(1.31)

<.05

-3.42

(1.93)

2.23

(1.44)

<.005

Central

-3.55 (1.92)

-2.24

(1.98)

<.005

-3.62

(1.79)

-2.58

(2.20)

<.05

-3.97

(1.69)

-2.60

(1.23)

<.05

-3.83

(2.80)

2.42

(1.32)

<.005

Parietal

-3.10 (1.80)

-2.10

(1.59)

<.005

-3.06

(1.53)

-2.22

(1.85)

<.05

-3.22

(1.63)

-1.95

(1.31)

<.05

-3.06

(1.84)

-1.88

(1.28)

<.005

N200

            

Frontal

-3.78

(3.11)

-2.19

(1.69)

<.005

-3.06 (3.08)

-2.55

(1.82

NS

-0.59

(1.43)

-1.43

(1.60)

<.05

-1.54

(1.42)

-1.04

(1.72)

NS

Central

-4.30

(4.10)

-1.80

(1.72)

<.005

-3.26

(3.08)

-2.04

(1.89)

<.05

-0.82

(1.13)

-1.48

(1.36)

<.05

-1.66

(1.02)

-1.49

(1.54)

NS

Parietal

-2.14

(3.15)

-1.07

(1.55)

NS

-1.89

(2.05)

-1.46

(2.11)

NS

-1.00

(1.19)

-1.17

(1.31)

NS

-1.41

(0.96)

-1.47

(1.50)

NS

P200

            

Frontal

1.20

(1.57)

1.84

(1.16)

<.05

1.47

(1.77)

2.42

(1.24)

<.005

2.05

(2.09

1.63

(2.01)

NS

2.87

(3.00)

2.18

(2.28)

NS

Central

2.02

(1.75)

2.65

(1.27)

NS

2.56

(1.87)

3.18

(1.44)

NS

2.94

(1.74)

2.79

(2.08)

NS

3.76

(1.77)

3.09

(2.21)

NS

Parietal

1.93

(1.26)

2.32

(1.14)

NS

2.42

(1.48)

2.73

(1.33)

NS

3.55

(1.55)

3.24

(1.90)

NS

3.67

(1.61)

3.33

(2.04)

NS

P300

            

Frontal

6.28

(3.15)

3.29

(3.16)

<.000

5.81

(3.53)

2.17

(2.59)

<.000

1.69

(1.21)

2.18

(1.66)

NS

1.35

(1.61)

1.84

(1.71)

NS

Central

7.49

(4.25)

3.80

(3.25)

<.000

7.17 (4.50)

2.76

(2.66)

<.000

2.14

(1.06)

2.04

(1.46)

NS

1.48

(1.30)

1.70

(1.50)

NS

Parietal

6.96

(3.71)

3.44

(2.65)

<.000

6.59 (3.78)

2.36

(2.64)

<.000

1.80

(1.02)

1.63

(1.43)

NS-

1.21

(1.35)

1.40

(1.15)

NS

P400

            

Frontal

      

1.41

(1.46)

1.99

(1.64)

NS

1.54

(1.50)

1.95

(2.26)

NS

Central

      

1.75

(1.14)

2.13

(1.20)

NS

1.43

(1.29)

1.77

(1.78)

NS

Parietal

      

1.66

(1.23)

1.79

(1.08)

NS

1.13

(1.17)

1.36

(1.67)

NS

  1. Data are expressed as mean (SD). NS indicates not significant.