Hi Hankee,

You certainly can use the statistical information in the stats dir regarding the volume, thickness, and surface area of individual regions, such as the parahippocampal gyrus (as derived from the ?h.aparc.annot file), to compare between various groups of subjects. The only recommendation would be that if you are performing cross-sectional comparisons using the volumes of individual brain regions, you should use the eTIV or ICV measure to adjust for head size for individual subjects.

Best,

rahul

hi,I have question about the ?h.aparc file in stats directory. Can I use the parahippocample's gray matter volume or other brain structure's gray matter volume to do statistics analysis? For example,select 15 normal people and 15 AD disease patient,using FreeSurfer software to deal with them,when It is done, Can I compare the parahippocample's gray matter volume which located in /stats/lh.aparc file between patient group and normal group? Thank you!

hankee£¬duhanjian@sohu.com 2007-04-26 _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer