Re: [Freesurfer] Making a custom experimental template

2011-05-18 Thread soft.join Huang
Hi doug,

I read your instructions on how to make an average subject, it looks quite
streamlined.
But I still have two questions about the procedure.
1. During the processing, every subject's surface need to register to a
common target, and where the target comes from, it is an existed template in
FreeSurfer or randomly selected from the pool of subjects, or something
else?
2. In order to get a well-established or accurate average template, how many
times does the function make_average_subject need to run?

Thanks in advance,
Lijie Huang

On Tue, May 10, 2011 at 3:28 AM, Douglas N Greve
gr...@nmr.mgh.harvard.eduwrote:

 Hi Joakim,

 here are some instructions on what to do (some of which you've already
 done):

 doug

 # Create an average subject (Creates $SUBJECTS_DIR/newtemplate)
 make_average_subject --out newtemplate --subjects subj1 subj2 subj3 ...

 # Register each subject to the new template (do for both lh and rh)
 # Creates lh.sphere.reg.newtemplate and rh.sphere.reg.newtemplate
 foreach subject (subj1 subj2 subj3 ...)
 cd $SUBJECTS_DIR/subject
 mris_register -curv surf/lh.sphere \
 $SUBJECTS_DIR/newtemplate/lh.reg.template.tif \
 surf/lh.sphere.reg.newtemplate
 end

 # Get thickness values in the newtemplate space for GLM analysis
 mris_preproc --surfreg sphere.reg.newtemplate --s subj1 --s subj2 --s
 subj3 ...

 # Create another average template based on the previous one:
 # (Creates $SUBJECTS_DIR/newnewtemplate)
 make_average_subject --out newnewtemplate --surf-reg
 sphere.reg.newtemplate \
 --subjects subj1 subj2 subj3 ...




 Joakim Vinberg wrote:
  Doug,
  Thanks! I just took a look at make_average_subject, and that looks
  quite a bit more streamlined--I think I'll just do that.
  Looking at make_average_subject, this should make the replacement for
  fsaverage. Following that, I would want to run mri_surf2surf to
  generate all of the surfaces in our new template space?
  Thanks!
  Joakim
 
  
  *From:* Douglas N Greve [mailto:gr...@nmr.mgh.harvard.edu]
  *Sent:* Fri 5/6/2011 9:46 AM
  *To:* Joakim Vinberg
  *Cc:* freesurfer@nmr.mgh.harvard.edu
  *Subject:* Re: [Freesurfer] Making a custom experimental template
  
  You are correct. If you run make_average_subject, it will create the
  template for you (as well as all the other files in a typical subject
  dir -- you'll need these to do a simple replacement for fsaverage).
 
  doug
 
  Joakim Vinberg wrote:
  
   Hi FS crowd,
  
   I just want to make sure that I have the process correctly described
   for setting up a custom experimental template. I am basing this off of
   the SurfaceRegAndTemplates
   (http://surfer.nmr.mgh.harvard.edu/fswiki/SurfaceRegAndTemplates), and
   a hypothetical experiment with 10 subjects (s1, s2, …s10). I apologize
   if this has been well-covered—I couldn’t quite match it on the website
   or the archives.
  
   For the prep step, I believe my commands would be:
  
   mris_make_template lh sphere s1 custom_template_lh_0.tif
  
   mris_make_template rh sphere s1 custom_template_rh_0.tif
  
   which would result in two new template files names
   custom_template_lh_0.tif and custom_template_rh_0.tif
  
   For Round 1, I would first create another registration for each
 subject:
  
   mris_register s1/surf/lh.sphere custom_template_lh_0.tif
   s1/surf/lh.sphere.regcustom_0
  
   mris_register s1/surf/rh.sphere custom_template_rh_0.tif
   s1/surf/rh.sphere.regcustom_0
  
   …
  
   mris_register s10/surf/lh.sphere custom_template_lh_0.tif
   s10/surf/lh.sphere.regcustom_0
  
   mris_register s10/surf/rh.sphere custom_template_rh_0.tif
   s10/surf/rh.sphere.regcustom_0
  
   And then create another custom template:
  
   mris_make_template lh sphere s1 s2 s3 … s10 custom_template_lh_1.tif
  
   mris_make_template rh sphere s1 s2 s3 … s10 custom_template_rh_1.tif
  
   For round 2, I would repeat Round 1, generating a new set of
   sphere.reg files, and then a new template, except substitute the
   custom template from round 1 (custom_template_lh_1.tif and
   custom_template_rh_1.tif).
  
   Then, I would register all of my data to the custom_template_lh_2.tif
   and custom_template_rh_2.tif generated at the end of round 2. From
   there, I am assuming that I could be able to use this new template as
   I would fsaverage. Am I correct, or have I missed a step?
  
   Thanks in advance for all of your help!
  
   Joakim
  
  
 
  
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  MGH-NMR Center
  gr...@nmr.mgh.harvard.edu
  Phone Number: 617-724-2358
  Fax: 617-726-7422
 
  Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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   The information 

[Freesurfer] Mris_anatomical_stats

2011-05-18 Thread Jürgen Hänggi
Dear FS experts

I tried to read out in each subject the surface area values of some clusters
derived from a group comparison.
For that purpose, I used mri_surf2surf and mris_anatomical_stats.

Everything worked fine, but in some clusters the direction of the effects
reversed. A first guess was that this might have to do with the smoothing
that we applied to the group comparison.

Therefore, I smoothed the individual area files to get the smoothed surface
area in each subject using the following command:

mris_anatomical_stats -a area_p01.annot -t rh.area -nsmooth 15 -f
$s/stats/rh.aparc.a2005s.stats $s rh

But the surface area of this smoothed data gives the same values as the
unsmoothed data.

Any idea what is wrong here?

Thanks in advance
Regards
Jürgen 


Jürgen Hänggi, Ph.D.
Division Neuropsychology
Institute of Psychology
University of Zurich
Binzmuehlestrasse 14, PO Box 25
8050 Zurich, Switzerland
0041 44 635 73 97 (phone office)
0041 76 445 86 84 (phone mobile)
0041 44 635 74 09 (fax office)
BIN 4.D.04 (office room number)
j.haenggi[at]psychologie.uzh.ch (email)
http://www.psychologie.uzh.ch/neuropsy/ (website)
http://www.juergenhaenggi.ch (private website)

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[Freesurfer] Neuroscience software survey: What is popular, what has problems? Immediate results

2011-05-18 Thread Yaroslav Halchenko
[Apologies for cross-posting]

Dear neuroscience researchers and IT staff

We invite you to participate in a survey on software usage and computing
environments in neuroscience research. It will take no more than five
minutes to fill it out. Immediately after sending your answers you will
get to see a summary of how other participants have responded before.
This data will eventually be made available to software vendors and
distributors to determine advantages and issue of popular computing
environments in neuroscience research.

Learn about what fellow neuroscientists are doing to address their computing
demands -- take the survey!

http://goo.gl/euIMc

Thanks,
-- 
PyMVPA/NeuroDebian Team:   Yaroslav O. Halchenko   Michael Hanke
Postdoctoral Fellows,  Department of Psychological and Brain Sciences
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
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[Freesurfer] Mris_anatomical_stats problem

2011-05-18 Thread Jürgen Hänggi
Dear FS experts

I tried to read out in each subject the surface area values of some clusters
derived from a group comparison.
For that purpose, I used mri_surf2surf and mris_anatomical_stats.

Everything worked fine, but in some clusters the direction of the effects
reversed. A first guess was that this might have to do with the smoothing
that we applied to the group comparison.

Therefore, I smoothed the individual area files to get the smoothed surface
area in each subject using the following command:

mris_anatomical_stats -a area_p01.annot -t rh.area -nsmooth 15 -f
$s/stats/rh.aparc.a2005s.stats $s rh

But the surface area of this smoothed data gives the same values as the
unsmoothed data.

Any idea what is wrong here?

Thanks in advance
Regards
Jürgen 

PS: sorry for posting this message twice, but the first post did not
appeared in the archives


Jürgen Hänggi, Ph.D.
Division Neuropsychology
Institute of Psychology
University of Zurich
Binzmuehlestrasse 14, PO Box 25
8050 Zurich, Switzerland
0041 44 635 73 97 (phone office)
0041 76 445 86 84 (phone mobile)
0041 44 635 74 09 (fax office)
BIN 4.D.04 (office room number)
j.haenggi[at]psychologie.uzh.ch (email)
http://www.psychologie.uzh.ch/neuropsy/ (website)
http://www.juergenhaenggi.ch (private website)

This e-mail (and any attachment/s) contains confidential and/or privileged
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Re: [Freesurfer] Mris_anatomical_stats problem

2011-05-18 Thread Douglas N Greve
Juegen, can you send the full terminal output? Also, you can try 
explicitly smoothing the file with mri_surf2surf and then run anatomical 
stats on the smoothed file.
doug

Jürgen Hänggi wrote:
 Dear FS experts

 I tried to read out in each subject the surface area values of some clusters
 derived from a group comparison.
 For that purpose, I used mri_surf2surf and mris_anatomical_stats.

 Everything worked fine, but in some clusters the direction of the effects
 reversed. A first guess was that this might have to do with the smoothing
 that we applied to the group comparison.

 Therefore, I smoothed the individual area files to get the smoothed surface
 area in each subject using the following command:

 mris_anatomical_stats -a area_p01.annot -t rh.area -nsmooth 15 -f
 $s/stats/rh.aparc.a2005s.stats $s rh

 But the surface area of this smoothed data gives the same values as the
 unsmoothed data.

 Any idea what is wrong here?

 Thanks in advance
 Regards
 Jürgen 

 PS: sorry for posting this message twice, but the first post did not
 appeared in the archives

 
 Jürgen Hänggi, Ph.D.
 Division Neuropsychology
 Institute of Psychology
 University of Zurich
 Binzmuehlestrasse 14, PO Box 25
 8050 Zurich, Switzerland
 0041 44 635 73 97 (phone office)
 0041 76 445 86 84 (phone mobile)
 0041 44 635 74 09 (fax office)
 BIN 4.D.04 (office room number)
 j.haenggi[at]psychologie.uzh.ch (email)
 http://www.psychologie.uzh.ch/neuropsy/ (website)
 http://www.juergenhaenggi.ch (private website)

 This e-mail (and any attachment/s) contains confidential and/or privileged
 information. If you are not the intended recipient (or have received this
 e-mail in error) please notify the sender immediately and destroy this
 e-mail. Any unauthorised copying, disclosure or distribution of the
 material in this e-mail is strictly forbidden.
 




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MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

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Re: [Freesurfer] Making a custom experimental template

2011-05-18 Thread Douglas N Greve


soft.join Huang wrote:
 Hi doug,
  
 I read your instructions on how to make an average subject, it looks 
 quite streamlined.
 But I still have two questions about the procedure.
 1. During the processing, every subject's surface need to register to 
 a common target, and where the target comes from, it is an existed 
 template in FreeSurfer or randomly selected from the pool of subjects, 
 or something else?
I would recommend starting off with fsaverage, then you can use your new 
average for the next iteration.
 2. In order to get a well-established or accurate average template, 
 how many times does the function make_average_subject need to run?
I don't know for sure. Probably two iterations are enough.

doug
  
 Thanks in advance,
 Lijie Huang

 On Tue, May 10, 2011 at 3:28 AM, Douglas N Greve 
 gr...@nmr.mgh.harvard.edu mailto:gr...@nmr.mgh.harvard.edu wrote:

 Hi Joakim,

 here are some instructions on what to do (some of which you've already
 done):

 doug

 # Create an average subject (Creates $SUBJECTS_DIR/newtemplate)
 make_average_subject --out newtemplate --subjects subj1 subj2
 subj3 ...

 # Register each subject to the new template (do for both lh and rh)
 # Creates lh.sphere.reg.newtemplate and rh.sphere.reg.newtemplate
 foreach subject (subj1 subj2 subj3 ...)
 cd $SUBJECTS_DIR/subject
 mris_register -curv surf/lh.sphere \
 $SUBJECTS_DIR/newtemplate/lh.reg.template.tif \
 surf/lh.sphere.reg.newtemplate
 end

 # Get thickness values in the newtemplate space for GLM analysis
 mris_preproc --surfreg sphere.reg.newtemplate --s subj1 --s subj2 --s
 subj3 ...

 # Create another average template based on the previous one:
 # (Creates $SUBJECTS_DIR/newnewtemplate)
 make_average_subject --out newnewtemplate --surf-reg
 sphere.reg.newtemplate \
 --subjects subj1 subj2 subj3 ...




 Joakim Vinberg wrote:
  Doug,
  Thanks! I just took a look at make_average_subject, and that looks
  quite a bit more streamlined--I think I'll just do that.
  Looking at make_average_subject, this should make the
 replacement for
  fsaverage. Following that, I would want to run mri_surf2surf to
  generate all of the surfaces in our new template space?
  Thanks!
  Joakim
 
 
 
  *From:* Douglas N Greve [mailto:gr...@nmr.mgh.harvard.edu
 mailto:gr...@nmr.mgh.harvard.edu]
  *Sent:* Fri 5/6/2011 9:46 AM
  *To:* Joakim Vinberg
  *Cc:* freesurfer@nmr.mgh.harvard.edu
 mailto:freesurfer@nmr.mgh.harvard.edu
  *Subject:* Re: [Freesurfer] Making a custom experimental template
 
  You are correct. If you run make_average_subject, it will create the
  template for you (as well as all the other files in a typical
 subject
  dir -- you'll need these to do a simple replacement for fsaverage).
 
  doug
 
  Joakim Vinberg wrote:
  
   Hi FS crowd,
  
   I just want to make sure that I have the process correctly
 described
   for setting up a custom experimental template. I am basing
 this off of
   the SurfaceRegAndTemplates
  
 (http://surfer.nmr.mgh.harvard.edu/fswiki/SurfaceRegAndTemplates), and
   a hypothetical experiment with 10 subjects (s1, s2, …s10). I
 apologize
   if this has been well-covered—I couldn’t quite match it on the
 website
   or the archives.
  
   For the prep step, I believe my commands would be:
  
   mris_make_template lh sphere s1 custom_template_lh_0.tif
  
   mris_make_template rh sphere s1 custom_template_rh_0.tif
  
   which would result in two new template files names
   custom_template_lh_0.tif and custom_template_rh_0.tif
  
   For Round 1, I would first create another registration for
 each subject:
  
   mris_register s1/surf/lh.sphere custom_template_lh_0.tif
   s1/surf/lh.sphere.regcustom_0
  
   mris_register s1/surf/rh.sphere custom_template_rh_0.tif
   s1/surf/rh.sphere.regcustom_0
  
   …
  
   mris_register s10/surf/lh.sphere custom_template_lh_0.tif
   s10/surf/lh.sphere.regcustom_0
  
   mris_register s10/surf/rh.sphere custom_template_rh_0.tif
   s10/surf/rh.sphere.regcustom_0
  
   And then create another custom template:
  
   mris_make_template lh sphere s1 s2 s3 … s10
 custom_template_lh_1.tif
  
   mris_make_template rh sphere s1 s2 s3 … s10
 custom_template_rh_1.tif
  
   For round 2, I would repeat Round 1, generating a new set of
   sphere.reg files, and then a new template, except substitute the
   custom template from round 1 (custom_template_lh_1.tif and
   custom_template_rh_1.tif).
  
   Then, I would register all of my data to the
 custom_template_lh_2.tif
   and 

Re: [Freesurfer] CORRELATION VALUE

2011-05-18 Thread Douglas N Greve
Hi Cleo, the mc correction will generate a segmentation file (something 
like cache.th20.abs.sig.ocn.mgh). The value at each vertex/voxel in this 
file correspond to the cluster that the vertex/voxel belongs to (if 
any). You can use this as the segmentation for mri_segstats and specify 
the gamma.mgh from your slope contrast to give you the average slope in 
each cluster.

doug

cgo...@bidmc.harvard.edu wrote:
 Hi all,
  
 My design is very simple: 1-group,1-variable 2-nuisance (age,gender).
 I just want to see the correlation between Cth and my variable.
 I obtain one cluster after mc-correction. (using freesurfer5)
  
 There is any way to get the intercept,slope or r-pearson (in average) 
 values of this particular cluster.
  
 What I've done is transform this cluster in a label to then visually 
 inspect the Graph Average ROI, but I want the numerical results.
  
 Thanks in advance for your useful help.
  
 Cleo.   
 

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Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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Re: [Freesurfer] Freesurfer Average Subject

2011-05-18 Thread Douglas N Greve
Hi Massieh, try adding --meas thickness

doug

mmoay...@uhnres.utoronto.ca wrote:
 Dear Dr. Fischl,

 We have been following the steps you have laid out on the listserv 
 (http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg17601.html) to 
 make an average subject. However, we are not able to proceed with the 
 mris_preproc step. It requires an output file and the hemisphere. When we 
 include these, it asks for an input file.

 The command we are inputting is:
 mris_preproc --surfreg sphere.reg.avgsubject --s nc_001 --s ...

 and

 mris_preproc --surfreg sphere.reg.avgsubject --hemi rh --s nc_001 --out 
 avgsubject.mgz

 Could you please advise us on how to proceed?

 Thank you.

 Regards,

 Massieh Moayedi

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Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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[Freesurfer] HippSubregions File Missing

2011-05-18 Thread Garth Coombs
Hi All,

I tried a runnings some recons (one recon entirely in Stable 5.1.0 using the 
-hippo-subregions flag, and one recon in Stable 4.5.0 followed by recon-all 
-hippo-subregions  in 5.1.0), and I am running into a small problem in that 
the posterior_Left-Hippocampus.mgz file does not seem to be created (in either 
case). It looks like all of the other subregion files are there, but it is 
missing the one file, which is causing the kv1* quantification script and 
viewing the left hippo subregions to fail (I can view the right ones just fine 
though). However, the recon did not exit with errors, and I don't see any 
errors in the log file. Any thoughts?

Thanks,
Garth
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[Freesurfer] ERROR: gdfOffsetSlope:

2011-05-18 Thread Ilana Hairston
Hi there,
When i load he group descriptor file i get the following error:
cannot determine the offset and slope for the  given group descriptor
because the design matrix creation method is unknown
Why is that?
Thanks
ilana

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Re: [Freesurfer] ERROR: gdfOffsetSlope:

2011-05-18 Thread Douglas N Greve
which fsgd file are you loading? You should load the y.fsgd in the glm 
output dir.
doug

Ilana Hairston wrote:
 Hi there,
 When i load he group descriptor file i get the following error:
 cannot determine the offset and slope for the  given group descriptor 
 because the design matrix creation method is unknown
 Why is that?
 Thanks
 ilana

 -- 
 ***
 peligro! flaca pero mala!
 **

 

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Re: [Freesurfer] CORRELATION VALUE

2011-05-18 Thread cgomez
Hi Doug, Thank you for your quick answer.
 
However, there are some points that are still not clear for me:
 
1-I would like to know also the correlation value (r-pearson; Cth-Variable)
of my significant cluster.  
This is something that I can get directly or I have to do some additional 
analysis?
If yes, which ones?? 

2-I would know the intercept of this cluster.

3-I’m using mri_segstats to get the average slope, I use:
mri_segstats --seg mc-z.abs.th13.sig.ocn.mgh --sum proof
But with this I only obtain the NVtx, I think I’m missing something….

Cleo.


De: Douglas N Greve [gr...@nmr.mgh.harvard.edu]
Enviado el: miércoles, 18 de mayo de 2011 10:25
Para: Gomez,Cleofe P. (BIDMC - Neurology)
CC: freesurfer@nmr.mgh.harvard.edu
Asunto: Re: [Freesurfer] CORRELATION VALUE

Hi Cleo, the mc correction will generate a segmentation file (something
like cache.th20.abs.sig.ocn.mgh). The value at each vertex/voxel in this
file correspond to the cluster that the vertex/voxel belongs to (if
any). You can use this as the segmentation for mri_segstats and specify
the gamma.mgh from your slope contrast to give you the average slope in
each cluster.

doug

cgo...@bidmc.harvard.edu wrote:
 Hi all,

 My design is very simple: 1-group,1-variable 2-nuisance (age,gender).
 I just want to see the correlation between Cth and my variable.
 I obtain one cluster after mc-correction. (using freesurfer5)

 There is any way to get the intercept,slope or r-pearson (in average)
 values of this particular cluster.

 What I've done is transform this cluster in a label to then visually
 inspect the Graph Average ROI, but I want the numerical results.

 Thanks in advance for your useful help.

 Cleo.
 

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Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
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[Freesurfer] recon-all tutorial data

2011-05-18 Thread obregon
Hi,

I'm new to the software and I'm having trouble finding the following file:

ftp://surfer.nmr.mgh.harvard.edu/pub/data/buckner_data-tutorial_subjs.tar.gz

How can I download the recon-all tutorial data? Has it been
replaced/relocated?

Thanks a lot,

Gabriel Obregon
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