Research Article
Time-Shift Correlation Algorithm for P300 Event Related Potential Brain-Computer Interface Implementation
Table 2
Experimental results of online operation.
| Mode (gait length) | Subject # | Subject 1 | Subject 2 | Subject 3 | Subject 4 | Subject 5 | Average | STD |
| Fast mode, FM (3 cm) | | | | | | | | Finishing time (sec.) | 255.00 | 245.00 | 238.00 | 283.00 | 257.00 | 255.60 | 17.14 | Total length (cm) | 660.40 | 639.50 | 606.60 | 716.80 | 668.00 | 658.26 | 40.46 | PPMCC | 0.40 | 0.42 | 0.62 | 0.41 | 0.43 | 0.46 | 0.09 | Length difference (%) | 1.60% | −1.62% | −6.68% | 10.28% | 2.77% | 1.27% | — |
| Accuracy mode, AM (3 cm) | | | | | | | | Finishing time (sec.) | 249.00 | 228.00 | 228.00 | 263.00 | 235.00 | 240.60 | 15.18 | Total length (cm) | 638.50 | 672.00 | 625.10 | 726.30 | 697.90 | 671.96 | 41.64 | PPMCC | 0.56 | 0.58 | 0.49 | 0.43 | 0.49 | 0.51 | 0.06 | Length difference (%) | −1.80% | 3.40% | −3.80% | 11.70% | 7.40% | 3.38% | — |
| Fast mode, FM (6 cm) | | | | | | | | Finishing time (sec.) | 191.00 | 165.00 | 165.00 | 166.00 | 170.00 | 171.40 | 11.15 | Total length (cm) | 580.20 | 631.50 | 703.50 | 704.28 | 724.62 | 668.82 | 60.87 | PPMCC | 0.48 | 0.59 | 0.46 | 0.24 | 0.36 | 0.43 | 0.13 | Length difference (%) | −10.70% | −2.80% | 8.20% | 8.40% | 11.50% | 2.92% | — |
| Accuracy mode, AM (6 cm) | | | | | | | | Finishing time (sec.) | 161.00 | 142.00 | 118.00 | 172.00 | 175.00 | 153.60 | 23.73 | Total length (cm) | 667.40 | 600.30 | 595.30 | 729.10 | 730.80 | 664.58 | 66.11 | PPMCC | 0.10 | 0.43 | 0.45 | 0.49 | 0.31 | 0.36 | 0.16 | Length difference (%) | 2.70% | −7.60% | −8.40% | 12.20% | 12.40% | 2.26% | — |
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