Research Article

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

Table 8

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

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

40.0210.7730.0200.6990.0200.6880.0190.6770.0190.675
50.0200.7040.0200.6380.0190.6230.0190.6110.0180.608
60.0180.6090.0180.5440.0170.5280.0170.5180.0170.514
70.0220.5440.0210.4450.0200.4250.0190.4210.0190.416
80.0400.8490.0380.7640.0370.7460.0350.7120.0350.714
90.0691.6400.0661.5520.0641.5420.0621.4790.0621.487
100.0972.6210.0942.5080.0912.4950.0882.4090.0882.421
120.1404.4050.1364.2020.1324.1800.1274.0740.1284.093
150.1716.2160.1665.8110.1615.7890.1555.6510.1565.678
200.1806.7930.1756.3180.1706.2940.1646.1450.1646.175
250.1816.8520.1756.3720.1716.3470.1646.1950.1656.225
350.1816.8620.1766.3820.1716.3580.1646.2040.1656.234
Unfiltered0.1816.8650.1766.3870.1716.3600.1646.2040.1656.235