Warping error. cannot proceed to warp

Bugs
1

Hi,
I try to warp my data and every time I do that, it stops at 17% and cannot proceed to warp.

TQ

2

Hello,

Are you following the instructions on this page: https://neuroimage.usc.edu/brainstorm/Tutorials/TutWarping?
Do you get this issue for all your subjects?
I would need to have the data in hand to debug this issue.

If you can’t find a solution and you’d like me to have a look at it, please send me an example dataset:

  • Duplicate the subject: right-click on the subject folder > File > Duplicate subject
  • In the new subject: keep all the anatomy files and the channel file. Delete all the other files, not necessary to replicate your observation.
  • Right-click on the subject folder > File > Export subject
  • Upload the zip file somewhere (dropbox, google drive, etc…) and send me the download link

Thanks
Francois

3

Hello Francois,

This is the link for my dataset. I also want to ask how do we know our dataset is clean after we do all the pre-process steps? TQ

https://drive.google.com/open?id=14rVx3-oX_24obhXP1B2TLaw1VCq5zsgJ

4

I could not reproduce what you describe. It worked without any problem.
What I did:

  1. Double-click on the subject, set its configuration back to “Yes, use default anatomy”
  2. Right-click on channel file > MRI registration > EEG: Edit, adjust a bit the alignment between the head points and the surface (answer YES to question “apply the same transformation to MEG?”): https://neuroimage.usc.edu/brainstorm/Tutorials/TutWarping#Edit_the_initial_MRI.2FMEG_registration
  3. Right-click on channel file > Digitized head points > Warp > Deform > Warp

Check if you have any error in the Matlab command window.
Make sure you have enough memory (open the resource monitor of your system at the same time).

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5

Look at the recordings manually.
Display the power spectrum.
All our recommendations for signal cleaning are available in the introduction tutorials (#10-14), and in these two other tutorials:
https://neuroimage.usc.edu/brainstorm/Tutorials/Epilepsy#Artifact_cleaning_with_ICA
https://neuroimage.usc.edu/brainstorm/Tutorials/SSPCookbook

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