Re: [Freesurfer] ROI analysis - smoothing

2017-03-15 Thread Douglas N Greve
no, that is fine too On 03/15/2017 04:49 PM, Mihaela Stefan wrote: > I was thinking to use lme_mass_FDR2 to correct for multiple > comparisons. Is there a reason not to use it in this case? > > Thank you! > Mihaela > > On Wed, Mar 15, 2017 at 3:55 PM, Douglas N Greve >

Re: [Freesurfer] ROI analysis - smoothing

2017-03-15 Thread Mihaela Stefan
I was thinking to use lme_mass_FDR2 to correct for multiple comparisons. Is there a reason not to use it in this case? Thank you! Mihaela On Wed, Mar 15, 2017 at 3:55 PM, Douglas N Greve wrote: > No, there is not. You can do it that way if you want to. The problem is

Re: [Freesurfer] ROI analysis - smoothing

2017-03-15 Thread Douglas N Greve
No, there is not. You can do it that way if you want to. The problem is that you then end up with stuff outside of the ROI smoothing into the ROI. Also note that either way, you will need to generate new tables for correction of multiple comparisons (use use permutation) On 03/15/2017 03:52

Re: [Freesurfer] ROI analysis - smoothing

2017-03-15 Thread Mihaela Stefan
Is there a way or reference this smoothing detail in a paper? There are people who believe that the soothing should be done at the whole brain level and then apply the mask (--label), during the GLM analysis. Thanks again! Mihaela On Wed, Mar 15, 2017 at 3:12 PM, Douglas N Greve

Re: [Freesurfer] ROI analysis - smoothing

2017-03-15 Thread Douglas N Greve
yes, that is the right way to do it On 03/15/2017 01:18 PM, Mihaela Stefan wrote: > Hello FreeSurfers, > > I would like to run a group analysis on cortical thickness using > existing Desikan labels. > > When I run the command for smoothing, should I replace *--cortex* with > *--label-trg*? In

[Freesurfer] ROI analysis - smoothing

2017-03-15 Thread Mihaela Stefan
Hello FreeSurfers, I would like to run a group analysis on cortical thickness using existing Desikan labels. When I run the command for smoothing, should I replace *--cortex* with *--label-trg*? In other words, for ROI analysis, should we smooth *only* the target mask? mri_surf2surf --hemi lh \