[Freesurfer] mris_preproc questions

Pedro Rosa

Hi, I have a couple of questions about the mris_preproc: 1) Can I include all subjects in the qdec.table, but afterwards exclude some of them (based on a determined categorial variable) during the statistical analysis? I understood that the script assembles thickness / area data into a single file, but individual data is not changed depending of other subjects’ data (it assembles individual data independently of other subjects into common-space fsaverage). Am I mistaken?

2) In a longitudinal study, should I include the .base. folders in the qdec-long.table (variable 2), or is it the same to include only the .long. folders in the qdec.table (below fsid)?

Thanks a lot, Pedro.