[Freesurfer] Annualised percentage change within linear mixed models

Hi FreeSurfer team, I was wondering if it is possible to use a measure of annualised percentage change instead of raw thickness within the FreeSurfer toolbox for Matlab (i.e. when running linear mixed models)? Thanks for your help, Nandi ___ Freesurfer

[Freesurfer] Downsampling data and writing mgh file

Dear FreeSurfer Experts, I'm trying to downsample the thickness info of subjects (with longitudinal data) to the same number of vertices as fsaverage6, and would like to save this output as an mgh file for use in Matlab. I was able to downsample a single subject using the following command: mri_s

[Freesurfer] FDR correction in Matlab

Hi FS team, I was wondering if you could help me with FDR correction for linear mixed models within Matlab. I have run FDR2 correction using the following command: *dvtx = lme_mass_FDR2(F_lhstats.pval,F_lhstats.sgn,lhcortex,0.05,0); *However, dvtx was empty, so I would like to try lme_mass_FDR ins

[Freesurfer] FreeSurfer6 hires patch for longitudinal output

External Email - Use Caution Dear FreeSurfer team, I have processed my data through the longitudinal stream of FreeSurfer6 using the -hires flag. I would like to apply the patch to fix the global metrics, but seem to run into an error when supplying the longitudinal subject direct

[Freesurfer] N3 correction issues

Hi all, We are processing longitudinal structural MRI data on Freesurfer 5. 0. As our images have some intensity problems, we were running an N3 correction outside of FreeSurfer using a mask in order to maximize this step (as per recommended by Boyes et al., 2008). We first ran autorecon1 and t