EEG channel location for source localization of EEG-MEG data

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Hi MNE experts,

I?m trying to do source localization to simultaneously recorded EEG and MEG
data. I modified the EEG channel location using the mgh70 montage to plot
the topographic distribution of the ERP effect because the original EEG
channel layout looks a bit weird. My question is which EEG channel location
I should use when building the forward model. Should I use the modified EEG
channel locations or the originally recorded locations? Can I use the
original fiducial points and digitizer data imported from the raw data to
align the MEG sensors and the head surfaceI?

Thank you for your help!

Best,

Lin
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hi Lin,

check the locations with mne.viz.plot_alignment

https://martinos.org/mne/dev/generated/mne.viz.plot_alignment.html

if it looks good you're good

HTH
Alex

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Hi Alex,

Thanks for the suggestion. It seems that the unmodified EEG locations look
better when I plot everything on the scalp. I'll use the originally
recorded locations for the source localization then.

Best,
Lin