[Mne_analysis] how to use viz.plot_alignment() on SEEG data?

[Alexandre Gramfort]

hi Larry,

did you properly set the sEEG electrode locations in the measurement info?
ie in the right coordinate system? if sEEG has never been tested you
can set the electrodes
as EEG channels and avoid the projection on scalp surface during plotting.

Let us know if it works

Alex

On Thu, Jan 18, 2018 at 12:08 AM, Eisenman, Lawrence
<leisenman at wustl.edu> wrote:
> Hi all,
>
>
>
> Using the ECOG tutorial
> (https://martinos.org/mne/stable/auto_examples/visualization/plot_3d_to_2d.html)
> as a starting point, I’m trying to import some SEEG data. I can get the EEG
> data loaded and create a DigMontage, but I am unable to view/confirm
> electrode location. Viz.plot_alignment does not seem to work with SEEG data.
> Am I missing something?
>
>
>
> As an alternative, I tried a kludge with PySurfer.
>
>
>
>>> from surfer import Brain
>
>>> %gui qt
>
>>>
>
>>> brain = Brain(subject_id, "lh", "pial", subjects_dir=subjects_dir,
>>> cortex='ivory', alpha=0.6)
>
>>> coords = [[seeg.x[i], seeg.y[i], seeg.z[i]] for i in range(len(seeg))]
>
>>> brain.add_foci(coords, color='red', scale_factor=0.2)
>
>>> brain.show_view('lateral')
>
>
>
> If this results in positions that look correct, does that imply that the
> electrode positions are probably correct?
>
>
>
> Thanks for your help.
>
>
>
> Larry
>
>
>
>
>
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