Table 6 Error measure ED2 for the four inverse algorithms, without regularization, under four different noise levels: 25 dB, 15 dB, 10 dB and 5 dB. Each cell value gives the mean and standard deviation.

WMN

38.49 ± 1.70

30.92 ± 1.34

19.32 ± 0.94

9.91 ± 0.40

39.39 ± 2.04

37.90 ± .81

29.13 ± 1.39

18.28 ± 0.92

37.65 ± 3.18

37.16 ± 3.11

31.80 ± 2.71

28.79 ± 2.21

sLORETA

21.35 ± 1.25

12.13 ± 0.81

4.85 ± 0.41

0.44 ± 0.05

25.50 ± 1.59

21.06 ± 1.51

11.15 ± 0.83

0.83 ± 0.15

24.90 ± 2.60

23.22 ± 2.31

15.57 ± 1.90

0.65 ± 0.31

LORETA

33.45 ± 1.16

27.10 ± 1.05

19.31 ± 0.80

8.56 ± 0.29

32.17 ± 1.23

30.22 ± 1.31

25.43 ± 1.18

10.10 ± 0.56

29.88 ± 1.92

29.20 ± 1.85

27.32 ± 1.71

13.95 ± 1.53

SLF

8.82 ± 0.66

7.19 ± 0.64

4.93 ± 0.48

2.56 ± 0.16

8.17 ± 0.72

7.30 ± 0.64

5.27 ± 0.60

2.23 ± 0.23

7.36 ± 0.77

6.86 ± 0.74

5.99 ± 0.83

2.56 ± 0.62