On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote: > Thanks a lot for your answer, > > I'm sending you attached the diff of the two mris_preproc. Those differences are just added features and won't change your results. > > When I wrote CT, I was meaning cortical thickness, as normally this > values are in surf/?h.thickness, But how do I know the > Xhemi-registered thickness values of each subject for lh-rh, or area > or any of those indices? I'm not sure what you mean. When you run mris_preproc, you specify whether you want thickness, etc. doug > > Regards, > Gabriel > > > El 25/03/13, *Douglas N Greve * <gr...@nmr.mgh.harvard.edu> escribió: >> >> 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. >> > > -- > -------------------------- > PhD. student Gabriel González-Escamilla > Laboratory of Functional Neuroscience > Department of Physiology, Anatomy, and Cell Biology > University Pablo de Olavide > Ctra. de Utrera, Km.1 > 41013 - Seville > - Spain - > > Email: ggon...@upo.es > http://www.upo.es/neuroaging/es/
-- 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
