Table 3 Average scores of each cognitive task at the baseline and endpoint after follow up for two patient groups

Wisconsin Card Sorting Test (WCST)

 Total Number of Errors (TNE)

44.60 ± 21.85

46.47 ± 20.37

41.40 ± 21.28

31.32 ± 17.72

 Perseverative Errors (PE)

26.48 ± 20.60

26.05 ± 17.37

21.18 ± 16.27

16.81 ± 14.38

 Conceptual Level Responses (CLR)

53.73 ± 22.67

53.51 ± 21.90

58.84 ± 22.91

70.21 ± 15.05

 Number of Completed Categories (NCC)

4.87 ± 2.82

4.77 ± 3.03

5.18 ± 3.45

6.73 ± 2.84

 Trials to Complete the first Category (TCC)

15.86 ± 9.62

20.97 ± 15.69

20.40 ± 12.68

17.53 ± 13.92

Continuous Performance Test (CPT)

 Omission T-score

61.33 ± 33.11

51.45 ± 10.75

69.54 ± 55.94

55.33 ± 32.82

 Commission T-score

50.13 ± 11.31

50.34 ± 10.44

50.96 ± 10.99

48.38 ± 8.50

 HRT T-score

49.39 ± 13.72

50.96 ± 13.24

52.27 ± 13.40

53.30 ± 12.71

 HRT SE T-score

54.71 ± 15.73

52.72 ± 14.56

61.50 ± 17.47

55.98 ± 17.42

 Variability T-score

55.70 ± 18.15

51.49 ± 13.71

63.55 ± 18.00

57.49 ± 13.71

 Detectability (d′) T-score

49.45 ± 10.90

48.14 ± 9.64

47.45 ± 11.18

46.29 ± 10.47

 Perseverations % T-score

59.67 ± 36.17

58.51 ± 23.15

74.53 ± 58.52

53.08 ± 12.21

 HRT Block Change T-score

49.42 ± 15.23

52.45 ± 12.52

53.56 ± 12.59

47.10 ± 11.07

 HRT ISI Change T-score

56.93 ± 12.61

58.06 ± 15.32

61.93 ± 14.56

62.10 ± 15.93

 Hit SE ISI change T-score

56.43 ± 15.40

53.36 ± 10.91

63.14 ± 15.96

59.14 ± 19.05