From: Detection of motor execution using a hybrid fNIRS-biosignal BCI: a feasibility study
Subject | 1 | 2 | 3 | 4 | 5 | 62 | 7 | Average | |
---|---|---|---|---|---|---|---|---|---|
NIRS only | Acc. ± SD [%] | (75.0 ± 4.6 †) | 74.8 ± 5.2 †| 85.5 ± 3.1 †| 91.7 ± 1.3 †| 71.7 ± 5.4 †| 90.3 ± 4.5 †| 62.4 ± 6.9 | 79.4 ± 11.7 |
(89.7 ± 3.5 †) | (78.7 ± 10.6) | ||||||||
Sens. ± SD [%] | (73.3 ± 5.4) | 72.3 ± 5.7 | 85.7 ± 2.9 | 88.7 ± 1.5 | 72.8 ± 6.7 | 87.2 ± 7.6 | 62.8 ± 11.6 | 78.3 ± 10.5 | |
(89.9 ± 6.3) | (77.9 ± 10.2) | ||||||||
Spec. ± SD [%] | (76.7 ± 4.9) | 77.2 ± 7.6 | 85.2 ± 5.6 | 94.8 ± 2.7 | 70.6 ± 5.1 | 93.5 ± 4.2 | 61.9 ± 6.8 | 80.5 ± 13.0 | |
(89.6 ± 5.8) | (79.4 ± 11.3) | ||||||||
N s | (1) | 4 | 1 | 1 | 1 | 3 (3) | 2 | ||
N m | (1) | 1 | 1 | 2 | 1 | 1 (2) | 1 | ||
Combined | Acc. ± SD [%] | 81.7 ± 4.1 †| 87.7 ± 3.0 †| 98.8 ± 0.8 †| 89.2 ± 4.5 †| 94.2 ± 1.2 †| 79.6 ± 3.2 †| 88.5 ± 7.3 | |
Sens. ± SD [%] | 82.1 ± 4.8 | 85.6 ± 3.8 | 99.6 ± 1.2 | 84.7 ± 8.3 | 93.8 ± 0.0 | 77.3 ± 5.1 | 87.2 ± 8.1 | ||
Spec. ± SD [%] | 81.3 ± 7.1 | 89.8 ± 4.3 | 98.0 ± 1.9 | 93.7 ± 5.4 | 94.6 ± 2.4 | 81.9 ± 3.3 | 89.9 ± 6.9 | ||
N s | 5 | 3 | 5 | 3 | 1 | 3 | |||
N m | 1 | 2 | 2 | 2 | 1 | 2 | |||
Acc. Gain [%] | 9.2 | 2.6 | 7.7 | 24.4 | 4.3 | 27.6 | 12.6 ± 10.7 | ||
Sens. Gain [%] | 13.6 | -0.1 | 12.3 | 16.3 | 7.6 | 23.1 | 12.1 ± 7.9 | ||
Spec. Gain [%] | 5.3 | 5.4 | 3.4 | 32.7 | 1.2 | 32.3 | 13.4 ± 14.9 | ||
p-value1 Acc. | 0.016 ∗ | 0.129 | < 0.001 ∗∗ | 0.001 ∗∗ | 0.051 | 0.001 ∗∗ | 0.02 ∗ | ||
p-value1 Sens. | 0.003 ∗∗ | 0.988 | < 0.001 ∗∗ | 0.028 ∗ | 0.062 | 0.034 ∗ | 0.008 ∗∗ | ||
p-value1 Spec. | 0.349 | 0.089 | 0.023 ∗ | < 0.001 ∗∗ | 0.535 | < 0.001 ∗∗ | 0.062 | ||
N T r i a l s | (60) | 46 | 48 | 60 | 46 | 30 (60) | 58 |