I tried to import 3 other surfaces (created by someone who is not in the lab here any more) for one of my subjects and they all gave an mne error indicating a bad “magic” number. One of these was “lh.Yeo_singles.annot”. Since it is the same size as lh.aparc.annot and lh.aparc.a2009s.annot, I assumed it had the same number of vertices. These are the two files containing the Dest. and DK atlases that BST imports initially, correct?
Another problem is, I do not have matching surface files for any of the .annot files we have available here. I do have volume files, which I should be able to convert to surface files using FrSrf utilities.
I still have some confusion about terminology. Above you say to import the surface, but refer to the .annot file in the FS label directory. FS surfaces are in the FS surf directory, including lh.pial. I also do not fully understand what you mean above with loading the atlas. What FS file is the Atlas here?
I will look at FS file definitions in more detail now while awaiting your next reply.
-Jeff