Table 3 Comparison of task performance between patients with low non-verbal expressivity ("low prosocials") and patients with high (normal) nonverbal expressivity ("high prosocials")

Age

Low prosocials

41.29

14.66

p = .131

High prosocials

33.5

9.78

Duration of illness

Low prosocials

9.93

9.4

p = .731

High prosocials

8.73

7.36

Intelligence

MWT

Low prosocials

102.64

11.93

p = .502

High prosocials

106.25

15.06

Picture completion

Low prosocials

11.07

3.08

p = .993

High prosocials

11.08

4.23

Executive functioning

WCST pers.

Low prosocials

3.69

2.84

p = .109

High prosocials

2.17

1.47

Zoo Map

Low prosocials

-0.93

3.95

p = .075

High prosocials

1.75

3.28

Langdon et al.'s sequencing tasks

Mechanical

Low prosocials

21.07

2.9

p = .087

High prosocials

22.67

1.5

Social script

Low prosocials

20.64

2.85

p = .075

High prosocials

22.75

2.93

Capture

Low prosocials

13.5

4.78

p = .419

High prosocials

15.08

5.02

False belief

Low prosocials

15.86

4.88

p = .05

High prosocials

19.75

4.81

Mentalising Task II

Sequencing

Low prosocials

27.5

6.67

p = .133

High prosocials

31.08

4.72

Questionnaire

Low prosocials

18.43

3.84

p = .071

High prosocials

20.83

2.33

Total score

Low prosocials

45.57

9.04

p = .06

High prosocials

51.83

6.38

Positive and Negative Symptom Scale

positive

Low prosocials

18.43

4.59

p = .004

High prosocials

13.17

3.74

negative

Low prosocials

21.07

7.77

p = .027

High prosocials

14.5

6.23

disorganised

Low prosocials

24.07

5.66

p = .007

High prosocials

17.83

4.97

excitement

Low prosocials

5.86

1.66

p = .546

High prosocials

6.25

1.6

affective

Low prosocials

12.07

3.79

p = .111

High prosocials

9.82

2.27

Social Competence (SBS)

Low prosocials

16.64

10.41

p = .05

High prosocials

8.73

6.54

Chlorpromazine equivalents

Low prosocials

794.14

838.91

p = .551

High prosocials

621.09

491.64