Dear Dr.Bruce Fischl

Thx for replying.

You told me that inequality of the subregions depends on the code I ran.

First off I ran the command:

  recon-all  -subject  test  -i  data_00.nii  -all

"data_00.nii" is a raw MR image.

Then, I ran this command:

mris_divide_parcellation  test  lh  aparc.annot  splitfile.txt  lh.aparc.split

And splitfile is a 2-column  file I myself made based on the FreeSurFerColorLUT.txt's content according to  the description in "mris_divide_parcellation --help".

And that's it

I would be grateful if you could help me.

Kind regards;