Hi Doug, is there a way to perform asymmetry analyses for local gyrification index? In my xhemi folders there is no LGI surface.
thank you Angela > > You can use --paired-diff-norm instead of --paired-diff, this will compute > > (L-R)/((L+R)/2) > > You can then divide the output by 2, eg, > > fscalc output.mgh div 2 -o output.div2.mgh > > doug > > > > > On 8/24/14 9:52 AM, angela.fav...@unipd.it wrote: >> Hi all, >> I have a question about hemispheric asymmetry analyses. The example >> given >> in the wiki shows how to compare lh and rh using a paired t-test. Is it >> right? >> But how can I calculate (and then compare groups) the laterality index >> (L-R)/(L+R)? >> Thank you very much for any help >> >> Angela >> >> >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> > > _______________________________________________ > 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
