Research Article

Effect of EOG Signal Filtering on the Removal of Ocular Artifacts and EEG-Based Brain-Computer Interface: A Comprehensive Study

Table 10

Mean absolute error (MAE) and mean absolute percentage error (MAPE) values in gamma frequency band (mean of all EEG channels and mean of all simulated subjects).

Low-pass EOG filter (Hz)SimpleAdaptive filteringHybrid methods
RegressionLMSRLSREGICAAIR
MAEMAPEMAEMAPEMAEMAPEMAEMAPEMAEMAPE

40.0370.1590.0340.1460.0260.1100.0210.0910.0200.088
50.0340.1460.0310.1330.0220.0950.0180.0750.0170.071
60.0330.1410.0300.1290.0210.0890.0160.0680.0150.064
70.0330.1400.0310.1300.0210.0890.0160.0660.0150.062
80.0330.1410.0310.1340.0220.0920.0160.0670.0150.063
90.0340.1420.0320.1380.0220.0950.0160.0690.0150.065
100.0340.1430.0330.1410.0230.0980.0170.0710.0160.067
120.0340.1440.0340.1440.0240.1020.0170.0730.0160.069
150.0340.1450.0340.1460.0240.1040.0180.0750.0170.071
200.0340.1460.0350.1480.0250.1060.0180.0770.0170.073
250.0350.1560.0360.1610.0260.1190.0190.0900.0180.087
350.0460.2700.0470.2810.0370.2420.0310.2140.0300.211
Unfiltered0.3003.5810.3083.5930.2963.5020.2873.3750.2873.395