OH,

I see, then how would I generate my own study average, if I wanted to do so?


On Nov 6, 2013, at 2:48 PM, Martin Reuter <mreu...@nmr.mgh.harvard.edu> wrote:

> Hi Jon,
> 
> that is just a placeholder, indicating that this can be your own average in a 
> real study. You can simply use 'fsaverage' for it, now.
> 
> Best, Martin
> 
> On Nov 6, 2013, at 2:22 PM, Jonathan Holt <whats...@umich.edu> wrote:
> 
>> Thanks a ton Martin,
>> 
>> can you possibly clue me into where I could find study_average?
>> 
>> best,
>> jon
>> On Nov 6, 2013, at 2:16 PM, Martin Reuter <mreu...@nmr.mgh.harvard.edu> 
>> wrote:
>> 
>>> Hi Jon,
>>> 
>>> passing the --qdec-long flag to mris_preproc will automatically generate 
>>> the right names (e.g. the .long. directories) and take the data from there. 
>>> You can pass the study_average vie the --target flag. The default is to use 
>>> fsaverage which is distributed with FreeSurfer. 
>>> 
>>> So mris_preproc maps the thickness maps to the subject average, while the 
>>> mris_surf2surf command is for smoothing the stack of thickness maps and 
>>> generates the …_sm10.mgh file.
>>> 
>>> Best, Martin
>>> 
>>> 
>>> 
>>> On Nov 6, 2013, at 2:07 PM, Jonathan Holt <whats...@umich.edu> wrote:
>>> 
>>>> FS experts,
>>>> 
>>>> I have two questions, when running mris_preproc and mri_surf2surf should I 
>>>> be passing these any of the .long directories created with recon-all 
>>>> -long? As I read through the tutorial I’m missing their significance in 
>>>> the analysis section of the longitudinal stream. It seems like fsaverage 
>>>> is being used (I’m not sure when that was even generated)
>>>> 
>>>> Secondly, I see that mris_preproc outputs a thickness.mgh file, but I’m 
>>>> wondering where, in your tutorial examples lh.thickness_sm10.mgh comes 
>>>> from/is located. Found in 
>>>> 
>>>> mri_surf2surf --hemi lh --s fsaverage --sval lh.thickness.mgh --tval 
>>>> lh.thickness_sm10.mgh --fwhm-trg 10 --cortex —noreshape
>>>> 
>>>> 
>>>> 
>>>> best,
>>>> 
>>>> jon
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
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>>> 
>>> ---------------------------------
>>> Dr. Martin Reuter
>>> Assistant in Neuroscience - Massachusetts General Hospital
>>> Instructor in Neurology   - Harvard Medical School
>>> MGH / HMS / MIT
>>> 
>>> A.A.Martinos Center for Biomedical Imaging
>>> 149 Thirteenth Street, Suite 2301
>>> Charlestown, MA 02129
>>> 
>>> Phone: +1-617-724-5652
>>> Email: 
>>>    mreu...@nmr.mgh.harvard.edu
>>>    reu...@mit.edu
>>> Web  : http://reuter.mit.edu 
>>> 
>>> _______________________________________________
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>>> 
>>> The information in this e-mail is intended only for the person to whom it is
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>> 
> 
> ---------------------------------
> Dr. Martin Reuter
> Assistant in Neuroscience - Massachusetts General Hospital
> Instructor in Neurology   - Harvard Medical School
> MGH / HMS / MIT
> 
> A.A.Martinos Center for Biomedical Imaging
> 149 Thirteenth Street, Suite 2301
> Charlestown, MA 02129
> 
> Phone: +1-617-724-5652
> Email: 
>    mreu...@nmr.mgh.harvard.edu
>    reu...@mit.edu
> Web  : http://reuter.mit.edu

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