Coordinates Definition on Atlases

Discussions
1

Hi there!
First-time commenter.
It may be a stupid question, but in the Atlases (such as the Destrieux) the name of each scout is paired with three numbers, representing the XYZ coordinates of a point. Is that point actually the centroid? I searched online but I was not able to find an answer.
Thanks to everyone who will help me!

2

Which numbers are you referring to?

3

Dear Francois,
two years ago I collected MEG data, projected them on the Destrieux atlas, and I obtained connectivity matrices (Amplitude Envelope Correlation). Exporting results to Matlab, I exported also a .txt file, with values that I am not sure what represents. I am not allowed to upload the file, but I paste here the first 10 regions to be more clear.

-36.46 -7.484 -0.058 1 1 l.G_Ins_lg_and_S_cent_ins
37.305 -4.064 -3.656 1 1 r.G_Ins_lg_and_S_cent_ins
-10.877 39.073 8.334 1 1 l.G_and_S_cingul-Ant
11.187 38.601 8.006 1 1 r.G_and_S_cingul-Ant
-10.191 13.856 35.766 1 1 l.G_and_S_cingul-Mid-Ant
10.39 14.795 36.112 1 1 r.G_and_S_cingul-Mid-Ant
-10.189 -11.567 39.832 1 1 l.G_and_S_cingul-Mid-Post
9.828 -9.724 40.879 1 1 r.G_and_S_cingul-Mid-Post
-24.026 53.836 -6.229 1 1 l.G_and_S_frontomargin
22.974 55.986 -8.061 1 1 r.G_and_S_frontomargin

Thanks!

4

This file was not generated by Brainstorm, I'm sorry I can't help you with this.

5

I will therefore change my question. How can I find the XYZ coordinates of each ROI of the Destrieux atlas implemented in Brainstorm, and the information I am looking for (the fact that those coordinates refer to the centroid of the ROI)?

Thanks

6

Getting XYZ coordinates of scouts is documented on this forum, for example: