Thank you Michael. I have more questions on this: 1. Is there a method to calculate if I have global difference in thickness between groups? 2. How can I control for global thickness difference vertex-wise using freesurfer?
Best wishes, Tanja. On Mon, Sep 5, 2011 at 7:42 PM, Michael Harms <mha...@conte.wustl.edu> wrote: > > Regarding #2: Yes, if you a have global difference in thickness between > groups, then it is appropriate to control for that in the same manner that > one frequently controls for total brain volume in volumetric analyses. > > cheers, > -MH > >> Dear list, >> >> I have two question: >> >> 1. Is it possible to do the asymmetry analysis in FS, I mean to >> compare left and right hemispheres within one group? >> >> 2. Is it necessary to somehow control for global abnormality of >> thickness while looking at regional abnormality, e.g. if one group has >> thinner brain overall, but also thinner brain in some regions? >> (Similar to dividing by total brain volume in volumetric analysis) >> >> Thank you and best wishes, >> Tanja. >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to whom it >> is >> addressed. If you believe this e-mail was sent to you in error and the >> e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you in >> error >> but does not contain patient information, please contact the sender and >> properly >> dispose of the e-mail. >> > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
