Hello FreeSurfers,
I want to compare cortical thickness differences between my two groups. Is
this the correct pipeline?
I ran make_average_subject on each group.
To get the study thickness file in control space, I did this: mri_surf2surf
--srcsubject study --srcsurfval study/surf/lh.thickness
Hi Jeff,
I think you want to use Doug's tools for this (mri_glm and such). He'll
probably comment in an hour or two
cheers
Bruce
On Mon, 13
Feb 2012, Jeff Sadino wrote:
Hello FreeSurfers,
I want to compare cortical thickness differences between my two groups. Is
this the correct pipeline
Hi Jeff, you should use mris_preproc to stack the subjects into one
file, mri_surf2surf to smooth them, and mri_glmfit to analyze them
(including computing the difference between groups and other stats). See
the group tutorial on the web page. You could probably do what you are
suggesting, but
Hi Jeff,
make_average_subject is just if you want to visualize results on a
surface presenting the average of your own subjects, rather than using
the provided 'fsaverage'. It is not necessary (and not related) to
performing group statistical comparisons per se.
You can use the 'qdec' utility to
Hello everyone,
I'm analyzing the data for a training study looking to see if there are
changes in cortical thickness as a result of training. We have pre and post
scans (training) and control subjects (no training). How do I setup this
design in the Xg.dat and matrix files so I can run mri_glmf
Hi Ryan, do a searched for "paired" on our wiki to get the instructions.
I think Martin also has some tools for longitudinal analysis, but for
just two time points it will probably be the same.
doug
On 9/24/12 8:26 PM, Ryan wrote:
Hello everyone,
I'm analyzing the data for a training study
