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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.

From: Review on solving the inverse problem in EEG source analysis

   ED2
   Unregularised
  SNR/dB     
  Layer 5 10 15 25
WMN Surface 38.49 ± 1.70 30.92 ± 1.34 19.32 ± 0.94 9.91 ± 0.40
  Middle 39.39 ± 2.04 37.90 ± .81 29.13 ± 1.39 18.28 ± 0.92
  Deep 37.65 ± 3.18 37.16 ± 3.11 31.80 ± 2.71 28.79 ± 2.21
sLORETA Surface 21.35 ± 1.25 12.13 ± 0.81 4.85 ± 0.41 0.44 ± 0.05
  Middle 25.50 ± 1.59 21.06 ± 1.51 11.15 ± 0.83 0.83 ± 0.15
  Deep 24.90 ± 2.60 23.22 ± 2.31 15.57 ± 1.90 0.65 ± 0.31
LORETA Surface 33.45 ± 1.16 27.10 ± 1.05 19.31 ± 0.80 8.56 ± 0.29
  Middle 32.17 ± 1.23 30.22 ± 1.31 25.43 ± 1.18 10.10 ± 0.56
  Deep 29.88 ± 1.92 29.20 ± 1.85 27.32 ± 1.71 13.95 ± 1.53
SLF Surface 8.82 ± 0.66 7.19 ± 0.64 4.93 ± 0.48 2.56 ± 0.16
  Middle 8.17 ± 0.72 7.30 ± 0.64 5.27 ± 0.60 2.23 ± 0.23
  Deep 7.36 ± 0.77 6.86 ± 0.74 5.99 ± 0.83 2.56 ± 0.62