On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote: > Dear Doug, > > I've seen that you restore the files to download, for the Xhemi > registration. While I'm checking for the statistical process, I've > seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: > 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06 > 16:06:17, Revision: 1.66, So mine is a lower version but recent hour, > and the actual is newer version but seems that was created before the > one I have. My question is, Which one should I keep? Can you send me a diff of the two files? > > If I change the mris_precproc version. Shall I re-run this step > before statistical analyses, to create a new lh.lh-rh.thickness.sm00.mgh? > > On the other hand I have some doubts about the statistical procedure. > It's supposed that if I apply the Xhemi registration, as result the > left and right hemispheres are equals to each other on every subject, so: > > A) Where can I get the CT values after the Xhemi registration to > FSaverage_sym for the left and right hemispheres? what are CT values? > > > B) Given that I have two groups, Patients and Control, with two levels > each, i.e male-female (Gp1male Gp1female Gp2male Gp2female > Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that I can > set the contrasts and fsgd files as with a normal CT analisis, but > only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to contain the > left-right differences across subjects, right? > > Wich would be the right interpretation? of: The interpretation does not really change because it is a xhemi analysis > > 1) 5 .5 -.5 -.5 0 0 0 0 Is the L-R difference between Grp1 and Grp2 different than 0 (regressing out Var1 and gender) > > 2) 5 -.5 .5 -.5 0 0 0 0 Is the L-R difference between Males and Females different than 0 (regressing out Var1 and Group) > > 3) 0 0 0 0 .5 .5 -.5 -.5 Does the slope of the L-R difference with Var1 differ between Grp1 and Grp2(regressing out gender) > > 4) 0 0 0 0 5 -.5 .5 -.5 Does the slope of the L-R difference with Var1 differ between Male and Female(regressing out group) >
> > > > Many thanks in advanced. > Gabriel. -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ 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.
