BEM surface error

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Hi!

I have several subjects that give the error "Surface inner skull is not
completely inside surface outer skull" when I try to create the BEM-model.
I know that there has been a thread
<https://github.com/mne-tools/mne-python/issues/3291> on this subject
before, but here people only had "minor intersections". Judging from
mne.viz.plot_bem, I have a major intersection between surfaces. What would
be the advisable approach in that case?

Best,
Karin
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Hi Karin,

can you share a picture of plot_bem? is it for EEG or MEG data?

Alex

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Thanks for your answer!
It's MEG data. The bem_plot() is attached

Karin

2018-06-20 5:01 GMT+02:00 Alexandre Gramfort <alexandre.gramfort at inria.fr>:

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Hi Karin,

can you share a picture of plot_bem? is it for EEG or MEG data?

Alex

>
> External Email - Use Caution
>
> Hi!
>
> I have several subjects that give the error "Surface inner skull is not
completely inside surface outer skull" when I try to create the BEM-model.
I know that there has been a thread on this subject before, but here people
only had "minor intersections". Judging from mne.viz.plot_bem, I have a
major intersection between surfaces. What would be the advisable approach
in that case?
>
> Best,
> Karin
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hi,

ok not too bad. If it's MEG you should try with a single layer BEM
and it should not complain.

See :

https://martinos.org/mne/stable/auto_tutorials/plot_forward.html#compute-forward-solution

HTH
Alex

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hi,

ok not too bad. If it's MEG you should try with a single layer BEM
and it should not complain.

See :

https://martinos.org/mne/stable/auto_tutorials/plot_forward.html#compute-forward-solution

HTH
Alex

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Ok! Thank you!

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