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Table 3 Channel combination and diagnostic performances of the optimal electrode configurations and those of five commercial wearable EEG devices

From: Selection of the optimal channel configuration for implementing wearable EEG devices for the diagnosis of mild cognitive impairment

 

Accuracy

(Mean±SD)

Sensitivity

(Mean±SD)

Specificity

(Mean±SD)

Channel combination

Opt-2ch

74.04%

±4.82

63.95%

±9.23

84.13%

±7.87

F3–F4

Opt-4ch

82.43%

±6.14

70.75%

±11.98

94.10%

±4.23

AF3–AF4–FC5–FC6

Opt-6ch

86.28%

±2.81

86.17%

±6.55

86.39%

±5.28

FC5–FC6–C3–C4–P7–P8

Opt-8ch

86.85%

±4.97

86.85%

±6.88

86.85%

±7.81

F3–F4–FC5–FC6–C3–C4–P7–P8

FocusbandTM(2ch)

55.90%

±7.01

50.11%

±12.01

61.68%

±8.71

Fp1–Fp2

InsightTM(5ch)

61.22%

±7.97

55.10%

±13.58

67.35%

±9.07

Pz–AF3–AF4–T7–T8

DSI-7TM(7ch)

64.74%

±7.17

65.76%

±11.72

63.72%

±8.84

Pz–F3–F4–C3–C4–P3–P4

ImecTM(8ch)

74.15%

±6.87

70.29%

±10.85

78.00%

±9.58

Fz–Cz–F7–F8–F3–F4–C3–C4

EpocTM(14ch)

73.81%

±7.57

60.77%

±12.41

86.85%

±7.21

AF3–AF4–F7–F8–F3–F4–FC5–FC6–T7–T8–P7–P8–O1–O2

  1. LPO-CV can be regarded as the 21 × 21-fold cross-validation. Therefore, the results of 441 iterations of LPO-CV were first divided into 21 blocks, and then the standard deviation (SD) was calculated across the 21 blocks