Hello Freesurfer Team,

I am running the fsfast analysis stream for resting state data and recently came across an issue with the funcroi-sess command. I originally used funcroi-config to configure the rois with the -annot aparc.a2009s $ROI flag to seed each of the regions from the 2009 annotation. But when I tried to do funcroi-sess I got the following error

ERROR reading $projectdir/sess01/rest/lh_G_and_S_frontomargin.fc/tmp.funcroi-sess.lh.G_and_S_frontomargin/label/lh.lh_G_and_S_frontomargin.label

It seems like this is because first command (mri_annotation2label) generates labels with slightly different names, such as $projectdir/sess01/rest/lh_G_and_S_frontomargin.fc/tmp.funcroi-sess.G&S_frontomargin.fc/label/lh.G&S_frontomargin.label. For instance, if I edit the config file to:

roiname lh.G_and_S_frontomargin
analysis lh_G_and_S_frontomargin.fc

the funcroi-sess command works fine.

As a solution, I edited my script to change the annotations to 1) remove the hemisphere from the prefix, and 2) replace G_and_S with G&S. With these changes, the funcroi-sess command seems to be working correctly.

I just wanted to get some feedback on whether this was a valid solution, or if this error is occurring because of some other larger issue that I will need to fix/be aware of. For reference I am using the stable6 version of freesurfer.

Thanks for your time,

Lydia Lewis