Hi Doug,
Thanks for the response. I used the mri_label2label command: mri_label2label --srclabel <labelfile> --s fsaverage --regmethod vol --paint dmax --trglabel <output> --hemi lh
When I input the output from this into mri_segstats as the --seg volume, I get the error: mri_read(): couldn't determine type of file fsaverage/label/lh_ACC_label_test.label ERROR loading fsaverage/label/lh_ACC_label_test.label
Is there another step I am missing?