Dear Freesurfers,
I have noticed a slight incongruity between the coordinates outputted by sig.cluster.summary and those in tksurfer. For instance, in the .summary file one of my maxima (VtxMax=92221) has the following "Tal" coordinates: -14.9, -62.2, 57.5. Now, if I open the fsaverage with tksurfer, and I enter 92221 as my Vertex Index, the Vertex Talairach coordinates are slightly different than those reported by the .summary file (-14.89, -61.61, 57.01). Is this because the Max in my significant cluster actually spans multiple adjacent vertices, and therefore the coordinates provided by the .summary file represent an average across those vertices? As for the "MNI Talairach", my understanding is that these are from the MNI305, right? If so, why the "Talairach" part of the name? Thanks, Marco _____________________ Marco L. Loggia, PhD Postdoctoral Fellow, Mass General Hospital & Brigham and Women's Hospital Harvard Medical School CNY Building 120, suite 101E Charlestown, Massachusetts 02129 Phone: (617) 643-7267 Fax: (617) 643-7340 ma...@nmr.mgh.harvard.edu
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