Hi, we have several reconstructed brains, which were processed by freesurfer 3.0.5. We also kept using the fsaverage data from 3.0.5 in order to be consistent.
We wish to do fMRI analysis with freesurfer/fs-fast 4.0.5 and found that talairach coordinates differ slightly when using the fsaverage from version 3.0.5 and the current fsaverage from 4.0.5. Yet, the both volumes appear pretty similar, the newer one maybe a little bit smoother. We would like to know what constitutes the exact difference between these two fsaverage datasets and whether it is possible to use the new version for analysis with the "old" fsaverage data without getting inconsistent results. Thanks a lot, Iris
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