Currently, I am carrying out a longitudinal mass-univariate study. However, I get blocked when I try to open the smoothed thickness '.mgh' file obtained using the 'mris_preproc' and 'mri_surf2surf' command or also when I try to open the fsaverage sphere.

Analyzing the code, I have realized that problems are caused due to that some '.m' files such as 'load_mgh.m' or  'read_surf.m' can't be opened because they are not provided on the package.  Should I download them from another source or maybe there is another problem I am not realizing?

Thank you in advance for you attention and your help!

Bests,

Victor