Dear FS experts

We divided the superior temporal sulcus derived from the aparc.a2009s.annot into parcellations of 300mm2 (using mris_divide_parcellation) and computed the mean cortical thickness within each parcellation. So far so good.

But we noticed that each parcellation has a unique surface area that deviates largely from 300mm2 (96-480mm2).

We defined the parcells on the fsaverage template and transformed them back into the native space of each individual. Therefore, we expected some variation in the surface area, but not such large differences.

How to explain it?

Thanks in advance Regards Jürgen

---------------------------------------------------------------------------- Jürgen Hänggi, Ph.D. Division Neuropsychology Institute of Psychology University of Zurich Binzmuehlestrasse 14, PO Box 25 8050 Zurich, Switzerland 0041 44 635 73 97 (phone office) 0041 76 445 86 84 (phone mobile) 0041 44 635 74 09 (fax office) BIN 4.D.04 (office room number) j.haenggi[at]psychologie.uzh.ch (email) http://www.psychologie.uzh.ch/neuropsy/ (website) http://www.juergenhaenggi.ch (private website)

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