Table 2 Baseline Demographics of Participants with Schizophrenia Who Received Computerized Auditory Training and Participants Who Played Computer Games

Mean

SD

Mean

SD

t

DF

p-value

Age, years

23.75

4.16

21.98

3.60

1.71

54.00

0.09

Education, years

13.00

1.78

12.72

2.95

0.41

50.00

0.69

FSIQ IQ^a

104.44

13.68

101.90

14.58

0.67

54.00

0.50

Duration of illness, years

1.50

1.23

1.85

1.41

−0.96

51.00

0.34

Hours of training

37.33

6.30

39.62

1.37

−1.91

54.00

0.09

PANSS Symptom Scores

Positive (mean of 7 items)

12.56

4.05

14.04

4.90

−1.18

50.00

0.24

Negative (mean of 7 items)

16.40

6.18

17.19

6.62

−0.44

50.00

0.66

General (mean of 16 items)

32.36

6.89

34.85

9.65

−1.06

50.00

0.29

MATRICS Global Cognition z-score

−1.12

0.93

−0.96

0.85

−0.66

54.00

0.52

DBL MMN z-score

0.35

0.99

0.44

0.88

−0.36

54.00

0.72

DUR MMN z-score

0.34

0.92

0.19

1.02

0.57

54.00

0.57

FREQ MMN z-score

0.32

1.00

0.43

0.99

−0.42

54.00

0.68

n

%

n

%

χ2

p-value

Gender

0.319

0.572

 Female

10

0.3

7

0.24

 Male

17

0.63

22

0.76

Handedness^b

0.248

0.884

 Right

25

0.93

26

0.90

 Left

1

0.04

2

0.07

 Ambidextrous

1

0.04

1

0.03

Antipsychotic type

0.305

0.662

 Atypical alone

25

0.93

26

0.90

 Typical alone

0

1

0.03

 Both

0

0

 None

2

0.07

2

0.07

 Anxiety Disorder

0

0

 Depressive Disorder

3

.11

2

0.07

.661

 Substance Abuse

3

.11

1

0.03

.341

 Substance Dependence

3

.11

2

0.07

.661