[Mne_analysis] Trans file without digitized data

[Alexandre Gramfort]

hi Florian,

use a standard montage with electrodes constrained on a sphere. If you want
to use a BEM model you need to rescale fsaverage. The coreg GUI in mne-python
allows you to do this AFAIK.

HTH

Alex


On Fri, Sep 16, 2016 at 10:03 AM, Florian Aspart
<florian.aspart at gmail.com> wrote:
> Hi all,
>
> first of all, thank you for developing MNE-python. I really like using it!
>
> I am trying to apply source reconstruction on EEG data but I have neither
> subject specific MRI nor digitized point for the EEG montage.
>
> I'm aware that without these data the source reconstruction will have little
> value but I would like to go for a rough guess using the provided fsaverage
> template for the MRI and standard 1020 montage with 64 electrodes.
>
> The problem is I don't know how to get the Trans file since I have no
> digitized montage.
> How should I get the digitized points? Is there a way to create standard
> digitized montage? In this case, which value should I use?
> Or do you know of any "template" of digitized point for a standard 1020
> montage with 64 electrodes I could use?
>
> I did not perform the experiment by myself, so digitizing a new participant
> with that montage would not be an option, or at least not in the near
> future.
>
> This question was already asked on this mailing list a couple of month ago,
> but no clear solution was provided.
> https://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/2016-June/003414.html
>
> Thanks,
> Florian
>
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