Plot 3D volume MEG Data on glass brain

Discussions
1

Dear all,
I perform analyses on MEG Data on reconstructed sources with an unconstrained volume model.
I would like to plot them in a 3D plot like blobs on a glass brain.
Do you know if it is possible to implement with volume data ? If yes, could you please share your solution?
Best
Arnaud Zalta

2

Maybe the following would work:

  • threshold your source (manually, directly editing the contents of the file),
  • export your volume as a .nii file (right-click > File > Export as 4D),
  • In the anatomy: right-click on the subject > Import surface > Format Volume mask or atlas
  • Then display the MRI as 3D orthogonal slices + "blob" surface with some transparency and a different color
3

Hi,
Wonderfull, it seems to work !
Thank you very much for your very quick and precise answer.

4

Hello,

I have neural signal data from an auditory experiment where we observe a bilateral (auditory) response.
When I try to plot them in a blob manner, sometimes it seems to work perfectly, sometimes only an unilateral blob appears. I tried to change the matrix data with 0 and 1 but it does not change anything.
Do you have a solution to correct this problem?

5

I haven't tested this method myself and I don't know what is in your data.
So, no, I don't any have solution for you to observe bilateral instead of unilateral responses.