Re: [Freesurfer] Group Thickness Maps/Looking at outputs from mri_preproc

2008-10-29 Thread Doug Greve
There should be multiple contrasts, one of the contrasts should be for group1, one for group2, and one for the difference (may be more). Sorry, I can't remember what names they are called off the top of my head. There will be an Xg.dat file with the design matrix to show which regressor is which

Re: [Freesurfer] 4.1.0 on Ubuntu 8.04

2008-10-29 Thread Rudolph Pienaar
On Wednesday 29 October 2008 22:10:15 hashiryu wrote: > Dear all, > > I have installed the version 4.1.0 (centos x86_64) on Ubuntu 8.04 and tried > the test commands for tkmedit and tksurfer as in "Testing your FreeSurfer > installation. However, the graphics "flashed" when I typed the command and

[Freesurfer] 4.1.0 on Ubuntu 8.04

2008-10-29 Thread hashiryu
Dear all, I have installed the version 4.1.0 (centos x86_64) on Ubuntu 8.04 and tried the test commands for tkmedit and tksurfer as in "Testing your FreeSurfer installation. However, the graphics "flashed" when I typed the command and then disappeared. There was no error message on the terminal. T

Re: [Freesurfer] Group Thickness Maps/Looking at outputs from mri_preproc

2008-10-29 Thread Bramen, Jennifer E.
When I look in the contrast folder, there is only one gamma.mgh image, but I have two groups. I am assuming this is the mean thickness, or the mean difference in thickness between groups. How do I get it to save out one file for each group? Where is there a good explanation of the output files

Re: [Freesurfer] Viewing atlas?

2008-10-29 Thread Nick Schmansky
Ryan, There is a sample subject named 'bert' included with freesurfer in the freesurfer/subjects dir that you could view to get an idea of a valid parcellation. Nick On Wed, 2008-10-29 at 11:10 -0400, Ryan Scotton wrote: > Hi Doug, > > I have reconned many subjects; the problem is that these su

Re: [Freesurfer] Viewing atlas?

2008-10-29 Thread Ryan Scotton
Hi Doug, I have reconned many subjects; the problem is that these subjects are 2-4 year olds and the scans do not always turn out ideally. It's hard for me to determine which of them contains a 'perfect' parcellation, which is why I was hoping I could use some sort of atlas template image that ha

[Freesurfer] Extraction mean curvature values

2008-10-29 Thread Carl Schultz
Dear all, I compared the mean curvature between two groups using the mri_glmfit command and the Monte carlo simulation. Is there a possibility to extract the smoothed average curvature values of the significant clusters for all subjects? Thank you in advance Best regards Christoph Schultz Uni