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Hi all,

I am trying to use MNE-Python for source reconstruction of EEG data but in a very rough way. That is, I have no MRI and no digitizer points! For the MRI, I wanted to use the fsaverage one, however, even if I know the standard location of my montage (let's say standard_1020) I did not find in any documentation a way to create a trans- file for EEG only from location of electrodes.

Does anyone know about that? Should I manually give a relative position of LPA, RPA and nasion along with the montage? What function to use?

Thanks,

Marina
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Well, if you are going for a rough guess, I would see if you could
digitize a different participant with the same system and use them
instead of fsaverage.

hth
d

3

hi Marina,

do you expect to do inverse modeling with a sphere model and a standard EEG
montage?

if so we currently have no streamlined pipeline to do this, although the
pieces are there.

can someone share a script and/or gives the steps to follow? I know that
some
or the MNE users don't have MRIs.

Alex