Figure 4
From: Adaptive optimal basis set for BCG artifact removal in simultaneous EEG-fMRI
Quantitative assessment of BCG artifact attenuation for all the subjects. Box plots are provided for all the subjects (S1, S2, S3, S4, S5, S6) for which AAS, ICA, OBS, and aOBS methods were applied for removing the BCG artifact from the EEG recordings. Comparison is performed by examining: (a) the percentage of BCG residuals in the cleaned EEG data. For each subject, aOBS method outperforms all the other methods in terms of BCG artifact attenuation as shown by the consistently lower percentage of residuals. (b) the cross-correlation between EEG channels and ECG signal.
