FW: [Freesurfer] ?h.volume files

2007-09-12 Thread Juergen Haenggi
Dear Bruce, dear Freesurfer users Thanks a lot for the advice. But when using mri_concate in order to average the volumes, there is the following error: "Error: dimension mismatch" between the lh.volume files of the subjects. We used following syntax: [thickness, f] = read_curv('lh.thickness') ;

[Freesurfer] Spherical ROIs areas in the fsaverage

2007-09-12 Thread jorge luis
Hello all I have made changes in the thickness values in some regions of a left hemisfere of a subject surface after mapped it onto the fsaverage sphere. The changes were made to have areas close to these in the left colum of the following table: My area Freesurfer number of vertices

Re: [Freesurfer] Spherical ROIs areas in the fsaverage

2007-09-12 Thread Bruce Fischl
Hi Jorge, the ?h.sphere is the metrically optimal surface, but after spherical registration, the ?h.sphere.reg has a fair amount of metric distortion, which is necessary to align folds cheers, Bruce On Wed, 12 Sep 2007, jorge luis wrote: Hello all I have made changes in the thickness value

Re: FW: [Freesurfer] ?h.volume files

2007-09-12 Thread Nick Schmansky
Juergen, Are the two subjects different surfaces? If so, then its likely they have differing numbers of vertices. You can check using mris_info. You can use mri_surf2surf to sample one subject onto another to achieve an equivalent number of surface vertices. See mri_surf2surf --help. Nick On

Re: [Freesurfer] error.. help?

2007-09-12 Thread Nick Schmansky
Britni, Does the brainmask.mgz file look ok? Compare it to the brainmask.mgz file included in the sample subject 'bert' included in the freesurfer/subjects directory. Same for the aseg.mgz and brain.mgz volumes. Nick On Mon, 2007-09-10 at 12:34 -0400, Britni Crocker wrote: > after autorecon2,

[Freesurfer] High Resolution Standard Brain

2007-09-12 Thread Dick, Rachel
Hello, I have T1 images at 0.8 x 0.8 x 0.8...Is there a high resolution (0.5-0.8) standard brain that I can co-register my images to in place of Freesurfer's? Also, does anyone know of a standard child/adolescent brain that is in use? Thanks in advance, Rachel Rachel Marie Dick Re

[Freesurfer] Possible to pass 2 identical analyses but with different names to intergroupavg-sess?

2007-09-12 Thread Dan Dillon
Dear FreeSurfers, I have two groups (patients vs. controls) whose data I'd like to compare using intergroupavg-sess. Here's the problem: I ran identical analyses on the two groups, but they were named differently (e.g., "control_analysis" vs "patient_analysis"). Is there a way to run intergroup

Re: [Freesurfer] recon-all flags -normalization2 and -maskbfs

2007-09-12 Thread Nick Schmansky
Greg, Yes, your suggested fix to recon-all.makefile for the brain.mgz target is correct, and the fix will appear in the next stable release. Note that the recon-all makefile feature has a big shortcoming that has kept me from announcing its usage publicly, and that is that it doesn't account for

[Freesurfer] New Neuroscience Forum

2007-09-12 Thread Toby Fernsler
Hello World, Announcing a new neuroimaging-specific forum as well as a data analysis and programming consulting business, at http://neuroimagingnetwork.com/ ABOUT THE FORUM The forum is intended to be an informal central site for neuroimaging researchers and professionals to discuss and troublesh