Not able to load the digitization source using MNE coreg based on CTF data

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Dear experts

I collected MEG data using a CTF 275, and I am learning coregistration following the tutorials show below:

Tutorial 1
https://www.martinos.org/mne/stable/auto_tutorials/source-modeling/plot_source_alignment.html?highlight=mne%20gui%20coregistration

Tutorial 2
https://www.slideshare.net/mne-python/mnepython-coregistration

I am not able to load the digitization source on the GUI of MNE coreg (version 0.17.2). The MNE coreg crashes when I tried to load the raw data (.ds folder), I attached the errors by copy & paste from terminal after it crashing. I notice that, in both tutorials, the raw datas were ?fif? format, different with mine ?.ds?, I am therefore wondering whether the problem was due to the file format or I did something wrong? Could you help how can I solve it?

Thanks

Bo
bo.zhang at pku.edu.cn <mailto:bo.zhang at pku.edu.cn>

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Hi Bo,

I suspect that you are right ? the coregistration GUI expects a *.fif file.
You can save your info to a fif file (which should be small) and use that
for coregistration.

from mne.io import write_info
write_info(info_fname, raw.info)

Hope that helps.

Best,
Mainak

        External Email - Use Caution

Dear experts

I collected MEG data using a CTF 275, and I am learning coregistration
following the tutorials show below:

Tutorial 1

Page Redirection

Tutorial 2
MNE-Python Coregistration | PPT

I am not able to load the digitization source on the GUI of MNE coreg
(version 0.17.2). The MNE coreg crashes when I tried to load the raw data
(.ds folder), I attached the errors by copy & paste from terminal after it
crashing. I notice that, in both tutorials, the raw datas were ?fif?
format, different with mine ?.ds?, I am therefore wondering whether the
problem was due to the file format or I did something wrong? Could you help
how can I solve it?

Thanks

Bo
bo.zhang at pku.edu.cn

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