the cortex.label is built based on a bunch of rules (e.g. surface locations next to the CC are not cortex), and so varies across subject depending on structure size and geometry

cheers Bruce On Wed, 27 Feb 2019, 310913949 wrote:

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Hi Freesurfer Pros??    I  want to know how the label file is generated?Is it the *h.cortex.label  generated after mapping the vertices into the space of the fsaverage? If yes, why different subjects dont have the same vertices number of the lh.cortex.label after  reconstruction? If not?? i used the command line ??mri_label2label --srcsubject mysubject --srclabel mysubject/label/lh.cortex.label --trgsubject fsaverage --trglabel lh.reg.cortex.label --regmethod surface --hemi lh?? ,that i tried to map the vertices into the space of the fsaverage,but it still have the same vertices,why?    I am looking forward to your reply!Thanks.

Sincerely, KK