Research Article

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

Table 7

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

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

40.28110.0480.28010.3860.27810.4010.27910.4490.27810.446
50.1455.5360.1416.1200.1386.0300.1376.0420.1376.040
60.0933.5900.0883.6050.0853.4090.0813.3590.0813.354
70.0942.0200.0921.8790.0871.5890.0821.4840.0831.468
80.1133.2920.1112.5900.1062.5310.0992.4350.1002.448
90.1304.1340.1283.3950.1223.3170.1143.2050.1163.231
100.1404.5110.1383.7640.1323.6770.1243.5650.1253.593
120.1494.7530.1474.0090.1403.9100.1313.7940.1333.824
150.1514.8160.1504.0840.1423.9790.1333.8530.1353.884
200.1524.8270.1504.1080.1423.9990.1343.8630.1353.894
250.1524.8290.1504.1130.1434.0030.1343.8640.1353.895
350.1524.8290.1504.1160.1434.0060.1343.8640.1353.895
Unfiltered0.1524.8350.1504.1460.1434.0290.1343.8620.1353.893