modify the channel

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External Email - Use Caution

Dear Mne community,

Can you please give me a real example, how can I modify the channel file?

Kind regards
Abdallah
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2

External Email - Use Caution

Hi,

What do you mean with channel file? The montage file with electrode
coordinates and names? Can you tell us more about what the end goal is /
why you want to modify this file?

Best,

Phillip

3

Please keep the list in CC.

The channels module has the tools to load and manipulate montages (both
custom and built-in):

https://mne.tools/stable/python_reference.html#module-mne.channels

I would not recommend modifying the actual files for the built-in
montages because that would change the behavior of MNE for all data,
including examples that depend on the built-ins working as they are
distributed.

For the difference between montage and layout, see the glossary
(https://mne.tools/stable/glossary.html), but here the relevant points:

layout

    A |Layout|
    <mne.channels.Layout — MNE 1.6.0 documentation;
    gives sensor positions in 2 dimensions (defined by |x|, |y|,
    >width>, and |height| values for each sensor). It is primarily used
    for illustrative purposes (i.e., making diagrams of approximate
    sensor positions in top-down diagrams of the head, so-called
    topographies or topomaps).

montage

    EEG channel names and the relative positions of the sensor w.r.t.
    the scalp. While layout are 2D locations, montages give 3D
    locations. A montage can also contain locations for HPI points,
    fiducial points, or extra head shape points. See |DigMontage|
    <mne.channels.DigMontage — MNE 1.6.0 documentation;
    for the API of the corresponding object class.

HTH

Phillip

Hi?Phillip,

I hope you?are well,

Yes the montage file of the sensors, do you know how can I modify it?
for example to modify the orientation?of the sensor,

Regards
Abdallah

    Hi,

    What do you mean with channel file? The montage file with
    electrode coordinates and names? Can you tell us more about what
    the end goal is / why you want to modify this file?

    Best,

    Phillip

    ???External Email - Use Caution???

    Dear Mne community,

    Can you please give me a real example, how can I modify the
    channel file?

    Kind regards
    Abdallah

    _______________________________________________
    Mne_analysis mailing list
    Mne_analysis at nmr.mgh.harvard.edu <mailto:Mne_analysis at nmr.mgh.harvard.edu>
    Mne_analysis Info Page

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4

External Email - Use Caution

Dear Phillip,

Thank you for your reply,
Is there any example in mne for this (modifying channel)? most of the
example in mne started with load fif file that I do not have,
I do not understand how to modify or build meg sensors, can you give me a
real example please?
if I want to export the channel file from brainstorm (.pos) and is there a
way to load it in mne to use the analysis of mne tool?

Thank you
Abdallah