Dear experts, 

I am trying to import a parcellation image (.nii) into the connectivity visualization tool. I clicked the button "Advance" > "Import parcellation image" and chose the atlas that I used for my analyses (atlas.nii). This atlas is the one used by default by the CONN toolbox for resting-state fMRI. 

The visualization tool does not recognize the image. Indeed, when I select this atlas to import, nothing happens.

Could you please explain what could be wrong with this file? I have uploaded it along with this post. 

Thank you very much,

Mathilde