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.
