Hi, I'm interested in analyzing subcortical segmentations, and have a question about potential systematic differences between freesurfer versions. Specifically, I have a large number of subjects who've been through a year-old version of recon-all -stage1 (the skull strip, normalization, etc), and was wondering if I need to keep using the old version for consistency's sake. Have those initial steps been substantially upgraded or changed over the past year? Also, is there somewhere I can find a guide to version history?
The versions concerned are:
OLD: 08/31/04, recon-all version 1.5, tosa
NEW: 09/28/05, recon-all version 1.114, nicks
Thanks,
-Aaron-
Aaron L. Goldman
Post-Bacc IRTA
Genes, Cognition and Psychosis Program, NIMH
Building 10, Room 3C108
Phone: (301) 435-0944
Email: aarong@mail.nih.gov