Table 3 Computerized bilateral field advantage (BFA) dot and letter matching tachistoscopic task mean on correct responses (msec): descriptive statistics for PCOS screen negative, PCOS screen positive, and PCOS medically confirmed groups. (group mean compared to reference group: *p < 0.05; **p < 0.02; ***p < 0.001)

Match dot unilateral mean

70

769.21

115.42

13.79

24

760.58

128.18

26.16

10

842.00*

137.83

43.58

Match dot bilateral mean

70

748.10

106.84

12.77

24

700.37

172.55

35.22

10

839.70*

120.33

38.05

No match dot unilateral mean

70

750.64

120.42

14.39

24

767.00

113.30

23.12

10

865.20*

112.50

35.57

No match dot bilateral mean

70

722.17

156.98

18.76

24

758.91

104.85

21.40

10

841.30*

120.10

37.97

Match letter unilateral mean

62

764.40

160.65

20.40

21

757.00

144.39

31.51

11

889.20*

147.90

44.59

Match letter bilateral mean

61

727.13

124.34

15.92

21

724.80

129.86

28.33

11

839.18*

137.76

41.53

No match letter unilateral mean

61

789.36

124.21

15.90

21

789.19

125.02

27.28

11

905.09*

147.15

44.36

No match letter bilateral mean

61

758.14

127.32

16.30

21

773.80

92.45

20.17

11

880.36**

150.85

45.48

No match letter BFA mean

61

32.02

50.29

6.44

21

15.38

54.78

11.95

11

24.73

44.724

13.48

Overall BFA for mean reaction time (throughput bilateral/unilateral ratio)

73

24.85

38.45

4.50

24

22.75

22.72

4.63

11

26.91

29.895

9.01