[Freesurfer] Freesurfer GLM vs SPSS for voulme analysis

2012-07-31 Thread Knut J Bjuland
Hi, I have calculated the group differences for volume using both FreeSurfer GLM and SPSS GLM. I have used gender and group as fixed factor and intercranial volume and age at MRI scan as covariate. GroupDescriptorFile 1 Title group_difference_between_group1_and_group2_gender_age DeMeanFlag 1 C

Re: [Freesurfer] Freesurfer GLM vs SPSS for voulme analysis

2012-07-31 Thread Knut J Bjuland
HI, I solve my problem. The FreeSurfer GLM model is easier to use than SPSS GLM. I had force SPSS to look at my model by selecting group differences between group1 and group2 and look at interactions between the three groups. I then got similar results as in FreeSurfer glm for the group diffe

Re: [Freesurfer] Label to ROI volume

2012-07-31 Thread mmoayedi
Dear Dr. Fischl, Thank you for your respone. What would the --reg and the --temp be in this case? Massieh > Original message -- >From: Bruce Fischl >To: mmoay...@uhnres.utoronto.ca-> >cc: freesurfer@nmr.mgh.harvard.edu-> >Subject: Re: [Freesurfer] Label to ROI

Re: [Freesurfer] Issues with Tracula

2012-07-31 Thread Sergio Medina
Ok I will. Thanks for your help! :) Sergio. 2012/7/30 Anastasia Yendiki > > Hi Sergio - Sorry, if this occurs independently of trac-all, whenever you > run bedpostx directly, you're better off asking for help on the FSL list. > We've never run into this problem with bedpostx up till now. > > a.

Re: [Freesurfer] Label to ROI volume

2012-07-31 Thread Bruce Fischl
it depends what volume geometry you want the output in. If our standard one you would do --identity --temp $SUBJECTS_DIR/$subject/mri/orig.mgz although Doug is the expert! cheers Bruce On Tue, 31 Jul 2012, mmoay...@uhnres.utoronto.ca wrote: > Dear Dr. Fischl, > > Thank you for your respone.

Re: [Freesurfer] Issues with Tracula

2012-07-31 Thread Sergio Medina
Anastasia, We might try installing FSL + FreeSurfer in another machine, because the one we were using was too slow anyway. Would you mind telling us exactly which versions of FreeSurfer and FSL I need to install? As I will mostly/only use Tracula then I would rather install the version of FSL that

Re: [Freesurfer] tracula error...

2012-07-31 Thread Anastasia Yendiki
Yes, default is fine! Just run bedpostx with the path to the dmri directory as the only argument, that should work. On Mon, 30 Jul 2012, Gonzalo Rojas Costa wrote: > Hi Anastasia: > > And, which options do you think I must use with bedpostx ?... The default > ?... > > Sincerely, > > > Gonzal

Re: [Freesurfer] Issues with Tracula

2012-07-31 Thread Anastasia Yendiki
Well, when the current version of tracula was being developped we had FSL 4.1.5 installed here. But now that the next version (you know, the one that will be available "soon") is being developped we have FSL 4.1.9. So I'd suggest going with the latest version of FSL. The only thing that shoul

[Freesurfer] Optic chiasm resisting edits

2012-07-31 Thread Peter McNally
Dear FreeSurfer Experts, I am using Freesurfer version 5.1 over at the University of Pennsylvania, and I have been running into issues with the optic chiasm. Despite having edited it out on both the brainmask.mgz and wm.mgz volumes, FreeSurfer has been insisting that it be included as a surface on

Re: [Freesurfer] Optic chiasm resisting edits

2012-07-31 Thread Bruce Fischl
Hi Peter what did you run after editing it out of the wm.mgz? You should be running -autorecon2-wm -autorecon3 cheers Bruce On Tue, 31 Jul 2012, Peter McNally wrote: > Dear FreeSurfer Experts, > > I am using Freesurfer version 5.1 over at the University of Pennsylvania, > and I have been run

Re: [Freesurfer] Optic chiasm resisting edits

2012-07-31 Thread Peter McNally
Hi Bruce, Thank you for your speedy response. Yes, I ran -autorecon2-wm -autorecon3. Best, Peter On Tue, Jul 31, 2012 at 2:03 PM, Bruce Fischl wrote: > Hi Peter > what did you run after editing it out of the wm.mgz? You should be running > -autorecon2-wm -autorecon3 > > cheers > Bruce > > > > O

Re: [Freesurfer] Optic chiasm resisting edits

2012-07-31 Thread Bruce Fischl
hmmm. And are the edits reflected in the filled.mgz? Is the chiasm gone? How about in the ?h.orig and ?h.orig.nofix? On Tue, 31 Jul 2012, Peter McNally wrote: > Hi Bruce, > > Thank you for your speedy response. Yes, I ran -autorecon2-wm -autorecon3. > > Best, > Peter > > On Tue, Jul 31, 2012

Re: [Freesurfer] Label to ROI volume

2012-07-31 Thread Douglas N Greve
Hi Massieh, use something like mri_label2vol --label lh.V1.label --regheader orig.mgz --temp orig.mgz --o lh.V1.mgz doug On 07/31/2012 05:46 AM, mmoay...@uhnres.utoronto.ca wrote: > Dear Dr. Fischl, > > Thank you for your respone. What would the --reg and the --temp be in this > case? > > Mass

Re: [Freesurfer] Recon-all -qcache curvature error & recon-all make -all

2012-07-31 Thread Douglas N Greve
Subject 20 is definitely out of synch, but the "make all" feature is not catching it. Try re-running this subject with -autorecon3 doug On 07/25/2012 11:45 AM, Gibbard, Clare wrote: > Hi Bruce, > > Thanks, I've attached the end of the recon-all.log file for one of the > subjects (the whole thi

Re: [Freesurfer] Optic chiasm resisting edits

2012-07-31 Thread Peter McNally
Whoops forgot to select reply all... Yes I am erasing the chiasm using tkmedit--I'll rerun autorecon-wm now and send the recon-all.log results when they finish (probably) tomorrow. Thank you, Peter On Tue, Jul 31, 2012 at 2:34 PM, Bruce Fischl wrote: > can you cc the list on these emails? And tr

Re: [Freesurfer] Optic chiasm resisting edits

2012-07-31 Thread Bruce Fischl
make sure it creates the filled without error, and if so, check the filled to make sure that the edits to the wm are present in it (I don't know why they wouldn't be though) On Tue, 31 Jul 2012, Peter McNally wrote: Whoops forgot to select reply all... Yes I am erasing the chiasm using tk

[Freesurfer] DODS Overlay

2012-07-31 Thread Ian Carroll
Hello, If I were to run a DODS -- say, an F-test looking for group differences and interactions in thickness among drug users vs non- users, dependents vs abusers, and drug use in the last month vs no use in the last month -- how would I visualize the results? I assume there's no intelligib

Re: [Freesurfer] DODS Overlay

2012-07-31 Thread Douglas N Greve
Right, that would be a post hoc analysis. doug On 07/31/2012 03:46 PM, Ian Carroll wrote: > Hello, > > If I were to run a DODS -- say, an F-test looking for group > differences and interactions in thickness among drug users vs non- > users, dependents vs abusers, and drug use in the last month vs

Re: [Freesurfer] tcsh: tailarach_avi: Command not found

2012-07-31 Thread Fidel Vila
Hi Doug,I re-installed freesurfer, and I still get the same error message (terminal output attached); bin files are still missing from bin folder.Shall I report this as a bug?Regards,Fidel Last login: Tue Jul 31 12:51:32 on ttyp2 Welcome to Darwin! a3128u:~ FVila$ export FREESURFER_HOME=/Applicatio

Re: [Freesurfer] tcsh: tailarach_avi: Command not found

2012-07-31 Thread Douglas N Greve
And there is nothing in /Applications/freesurfer/bin? Are there any files in the other directories? Do you have permission to install it in that location? If nothing is in the bin dir, then there is no need to try recon-all, it will always fail. doug On 07/31/2012 04:05 PM, Fidel Vila wrote:

[Freesurfer] longitudinal stats

2012-07-31 Thread Rajagopalan, Venkateswaran
Hi All, I am trying to do cortical thickness analysis on a single subject's longitudinal data. I am attaching the design and group.diff.mtx could any one tell me whether they are correct. Thanks venkat === Please consider the environment before printing this

Re: [Freesurfer] longitudinal stats

2012-07-31 Thread Douglas N Greve
yes they are, but it is going to fail because you will not have any degrees of freedom. What are you trying to do? You can't make inferences from a single subject like this. doug On 07/31/2012 05:10 PM, Rajagopalan, Venkateswaran wrote: > > Hi All, > > I am trying to do cortical thickness analys

Re: [Freesurfer] longitudinal stats

2012-07-31 Thread Martin Reuter
Hi also we have tools to compute within subject differences (or slopes in case of several time points) as well as percent changes before mapping to fsaverage (long_mris_slopes, see the longitudinal tutorial on the wiki). Best, Martin On Tue, 2012-07-31 at 17:10 -0400, Rajagopalan, Venkateswaran

Re: [Freesurfer] tcsh: tailarach_avi: Command not found

2012-07-31 Thread Fidel Vila
> And there is nothing in /Applications/freesurfer/bin? There are 357 items in /Applications/freesurfer/bin > Are there any files in the other directories? Indeed, from /Application/freesurfer/average (50 items in here) to / Applications/freesurfer/trctrain (35 items) as well as 'LICENSE' file,

[Freesurfer] (no subject)

2012-07-31 Thread Hugh Pemberton
Hi, So when using command tkmedit *subjID* brainmask.mgz -aux -wm.mgz -surfs I receive the message: "Error: Parsing -aux option Expected an argument This option needs an argument: the image type, directory, or file name of the data to load as the aux volume." My apologies if there is an obvious