Biomedical Engineering Reference
In-Depth Information
FIGURE 4.7:
(a) 4 s epoch of MEG contaminated with 50 Hz, ocular and ECG
artifact. (b) ICA output after using 50-Hz reference depicted. (c) The MEG signal
with 50 Hz artifact subtracted. (d) ICA output after using ocular artifact reference
depicted. (e) The signal with 50 Hz and ocular artifact subtracted. (f) ICA output
after using ECG reference depicted. (g) The signal with 50 Hz, ocular and ECG
artifact subtracted. The topographies for each ICA derived component are shown on
the right. From [James and Gibson, 2003].
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