[Mne_analysis] Example on SPM Faces dataset - 2 questions

Alexandre Gramfort alexandre.gramfort at telecom-paristech.fr
Sun Oct 4 11:02:38 EDT 2015
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hi Annalisa,

> I have two different questions about the example plot_spm_faces_dataset.py.
>
> 1) If I run the code and I try to plot the ICA components on time
>
>    >>>  show_picks = numpy.abs(eog_scores).argsort()[::-1][:5]
>    >>>  fig1=ica.plot_sources(raw, show_picks, exclude=eog_inds)
>
>    I obtain the figure u find in attachment.
>    My question is: why do I see the ref channels?
>
>    In the old mne-python version I had a different layout, as that
>    shown in plot_ica_from_raw.py.
>
>    What's wrong?

we improved the layout. But indeed there is no point is showing the
meg reference channels.

We'll fix it this week.

> 2) I tried to co-register using mne.gui.coregistration()
>
>    I load the spm sbj and the raw file
> SPM_CTF_MEG_example_faces1_3D_raw.fif.
>    Does this file contain only the fiducial points?

yes

>    If yes, when I load the raw file I can't see the fiducials in the gui.

maybe Christian knows. Do you see them with mne_analyze?

>    Where I'm making a mistake?

I don't think you do :)

Best,
Alex


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