Hi Doug,

I have a gamma.mgh file in glmdir/rh-Diff-1-3-Intercept-long.area-spc/ and I 
also have a contrasts.sig.mgh file in the gmldir.

Could either of these be used instead of csdbase.sig.ocn.mgh? Or how could I 
retrieve this file?

Thanks for your help!
Clara

----- Ursprüngliche Mail -----
Von: "Douglas N Greve" <gr...@nmr.mgh.harvard.edu>
An: freesurfer@nmr.mgh.harvard.edu
Gesendet: Donnerstag, 16. Februar 2017 19:22:01
Betreff: Re: [Freesurfer] cluster as ROI

On 02/16/2017 04:24 AM, Clara Kühn wrote:
> Hi Doug,
>
> thanks for your input. Could you specify some of the flags for me?
>
> --i tp1.stack.mgh - is this supposed to be the cluster or file in my 
> /template/surf/ folder that I get from mris_preproc and mris_surf2surf?
input from preproc/surf2surf
> --seg glmdir/contrast/csdbase.sig.ocn.mgh - I don't seem to have this file. 
> The only files I have in the contrast folder are 2 .mat files
there should be a bunch of output there from mri_glmfit and 
mri_glmfit-sim. Actually, if you ran qdec, then the glmfit-sim output 
may not be there. you'll have to run it separately. But there should be, 
eg, gamma.mgh there
>
> Cheers
> Clara
>
> ----- Ursprüngliche Mail -----
> Von: "Douglas N Greve" <gr...@nmr.mgh.harvard.edu>
> An: freesurfer@nmr.mgh.harvard.edu
> Gesendet: Mittwoch, 15. Februar 2017 23:35:54
> Betreff: Re: [Freesurfer] cluster as ROI
>
> Use something like this
>
> mri_segstats --i tp1.stack.mgh --seg glmdir/contrast/csdbase.sig.ocn.mgh
> --excludeid 0 --avgwf tp1.clustermean.dat
>
> The output tp1.clustermean.dat will be a matrix with nsubjects rows and
> nclusters columns where the value represents the mean for that subject
> in that cluster.
>
>
>
> On 02/14/2017 11:47 AM, Clara Kühn wrote:
>> Dear FreeSurfer Experts,
>>
>> I compared 2 groups in QDEC in spc (from pre to post) and found a cluster 
>> that survives Monte Carlo correction. Now I would like to extract the data 
>> for each participant and each time point from that cluster so that I can 
>> plot the change.
>>
>> How could I do this? I tried this so far:
>> aparcstats2table --qdec-long $SUBJECTS 
>> DIR/qdec/2016.12.06-40kids-long.qdec.table2-1.dat --hemi rh - -tablefile 
>> $SUBJECTS 
>> DIR/qdec/2016.12.08-40kids-2stagemodel/rharea-cluster-extracted.txt --parc 
>> $SUBJECTS DIR/qdec/2016.12.08-40kids-2stagemodel/rh-area 
>> again/rh-Diff-1-3-Intercept-long.area-spc/cache.th30.abs.sig.cluster.mgh
>>
>> But I get this error:
>> ERROR: The stats file 
>> /nobackup/etsch2/kids/prepost-61kids/AL3K_1.long.AL3K.base/stats/rh./nobackup/etsch2/kids/prepost-61kids//qdec/2016.12.08-40kids-2stagemodel/rh-area_again/rh-Diff-1-3-Intercept-long.area-spc/cache.th30.abs.sig.cluster.mgh.stats
>>  is not found or is too small to be a valid statsfile
>> Use --skip flag to automatically skip bad stats files
>>
>>
>> Do I have to define my cluster as a ROI and then warp it onto the single 
>> time points? How would I do that?
>>
>> Any help is much appreciated!
>> Thank you
>>
>> Clara

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358
Fax: 617-726-7422

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