Table 2 Comparison between studied groups in cognitive tests

Intelligence quotient

87.58 ± 7.51

93.73 ± 9.09

91.77±8.97

0.063

0.101

0.518

Finger tapping (DH)

104.26 ± 4.65

105.64 ± 5.59

105.83±5.13

0.478

0.295

0.913

Finger tapping (NDH)

104.79 ± 4.57

102.55 ± 2.84

105.67±4.37

0.165

0.480

0.056

COWAT

92.68 ± 2.54

99.55 ± 10.54

110.90±10.80

0.059

0.001*

0.001*

Stroop (s)

163.89 ± 21.86

169.55 ± 22.76

129.17±12.52

0.409

0.001*

0.001*

Trail making A (s)

61.79 ± 12.70

59.55 ± 12.48

56.63±14.11

0.660

0.195

0.540

Trail making B (s)

124.89 ± 61.66

149.36 ± 43.66

125.30±45.66

0.210

0.978

0.186

Corsi’s block tapping test

4.37 ± 0.81

4.53 ± 0.72

4.52±0.74

0.583

0.498

0.978

Tower of London (correct moves)

82.16 ± 10.80

84.18 ± 12.45

95.07±9.12

0.607

0.001*

0.004*

WCST (conceptual level response)

43.53 ± 6.73

49.73 ± 8.00

54.60±6.05

0.017*

0.001*

0.042*

Pursuit rotor task (s)

35.95 ± 7.74

37.36 ± 6.10

20.13±8.23

0.631

0.001*

0.001*