If you want to do a repeated measures ANOVA with more than two time points, I've put a page together here:
http://surfer.nmr.mgh.harvard.edu/fswiki/RepeatedMeasuresAnova doug On 10/15/2012 08:24 PM, Harry Hallock [hhal5...@uni.sydney.edu.au] wrote: > Hi Martin, > > If you could make available that lme toolbox link, that would be great! > Thanks for the help. > > Cheers, > Harry > ------------------------------------------------------------------------ > *From:* jorge luis [jbernal0...@yahoo.es] > *Sent:* Tuesday, 16 October 2012 8:16 AM > *To:* Martin Reuter; Harry Hallock [hhal5...@uni.sydney.edu.au] > *Cc:* freesurfer@nmr.mgh.harvard.edu > *Subject:* Mixed-effects models for longitudinal data analysis in > Freesurfer > > Hi Harry > > As Martin said, longitudinal linear mixed-effects models (lme) are the > recommended tool for analyzing longitudinal data obtained from the > Freesurfer longitudinal image processing pipeline. The increase in > power can be dramatic. Coming up there is a paper about this subject. > We are working on making our lme tools available and easy to use but > in the mean time, if you are interested, I can make available a link > for you to download our Matlab-based lme toolbox. > > Best > -Jorge > > > ------------------------------------------------------------------------ > *De:* Martin Reuter <mreu...@nmr.mgh.harvard.edu> > *Para:* Harry Hallock <hhal5...@uni.sydney.edu.au>; Douglas N > Greve <gr...@nmr.mgh.harvard.edu>; > "freesurfer@nmr.mgh.harvard.edu" <freesurfer@nmr.mgh.harvard.edu> > *Enviado:* Domingo 14 de octubre de 2012 21:06 > *Asunto:* Re: [Freesurfer] 3 Factor glm group analysis > > Hi Harry. > > I have some scripts to compute a slope into the time thickness or > volume (linear fits) and then run a standard glm on that . > > However, we recommend to run a linear mixed effects model > (external software). We are working on making that available. > > Best Martin > > Harry Hallock <hhal5...@uni.sydney.edu.au> wrote: > > Thanks Doug! > > If i wanted to add a third time-point, what would u suggest would be > a good method to use for time x group interaction? > > Harry > > ------------------------------------------------------------------------ > > From: freesurfer-boun...@nmr.mgh.harvard.edu > [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of Douglas N Greve > [gr...@nmr.mgh.harvard.edu] > Sent: Wednesday, 10 October 2012 1:10 AM > To: freesurfer@nmr.mgh.harvard.edu > Subject: Re: [Freesurfer] 3 Factor glm group analysis > > Hi Harry, I would do a time1-time2 subtraction (fscalc) and then do a > 2 > group analysis (search for "paired" on our wiki). > doug > > > > On 10/09/2012 12:45 AM, hhal5...@uni.sydney.edu.au wrote: > > Hello, We are currently doing a longitudinal Group > Analysis using FreeSurfer, and were wondering if there is > a way to run a 3 factor design (time is 2 levels, group is > 2 levels, subject is 10 levels) using the mri_glmfit > model, as i want to test the time by group interaction? Is > there a way of writing this model in an FSDG file? If we > can't do this using mri_glmfit, is it possible to do this > using QDEC? Regards, Harry > > ------------------------------------------------------------------------ > Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > -- > 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 > <http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting> > FileDrop:www.nmr.mgh.harvard.edu/facility/filedrop/index.html > <http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html> > > > ------------------------------------------------------------------------ > > 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 > > > > -- > Sent from my phone, please excuse brevity. > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu <mailto: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 -- 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 _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
