Dear Dr. Fischl,
We have been following the steps you have laid out on the listserv (http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg17601.html) to make an average subject. However, we are not able to proceed with the mris_preproc step. It requires an output file and the hemisphere. When we include these, it asks for an input file.
The command we are inputting is: mris_preproc --surfreg sphere.reg.avgsubject --s nc_001 --s ...
and
mris_preproc --surfreg sphere.reg.avgsubject --hemi rh --s nc_001 --out avgsubject.mgz
Could you please advise us on how to proceed?
Thank you.
Regards,
Massieh Moayedi