I can't either. But I am wondering if it is possible to calculate some thing like "distance from center of the brain to the white surface"? it is like cortical thickness but can be called white matter thickness/depth??

I want to see if WM expands over time in some regions versus other regions…

-- 
Daniel (Yung-Jui) Yang, Ph.D.
Postdoctoral Researcher
Yale Child Study Center
New Haven, CT
Tel: (203) 737-5454
E-mail: yung-jui.yang@yale.edu

On 3/3/14 3:35 PM, "Douglas N Greve" <greve@nmr.mgh.harvard.edu> wrote:

Right. How do you define the "complete WM vol underneath the label"?

On 03/03/2014 03:01 PM, Yang, Daniel wrote:
Sounds like a lot of work, but thanks for your reply.

By the way, the wm vol generated this way is 5mm from white surface
into the center of the brain, correct? Thus, it is not necessarily the
complete WM vol underneath the label?

Daniel

--
Daniel (Yung-Jui) Yang, Ph.D.
Postdoctoral Researcher
Yale Child Study Center
New Haven, CT
Tel: (203) 737-5454

On 3/3/14 2:48 PM, "Douglas N Greve" <greve@nmr.mgh.harvard.edu

     yes, but not easily. You will have to create an annotation with
     your new
     label in it (and any other label for the other parts of cortex)
     (probably using mris_label2annot), then run mri_aparc2aseg to
     generate a
     new wmparc-style volume, then run mri_segstats. You can look in the
     recon-all.log file for example command lines for mri_aparc2aseg
     (used to
     generate the wmparc.mgz)
     doug
     On 03/03/2014 02:31 PM, Yang, Daniel wrote:

         Sorry, I wasn't clear. It's a cortical label that I manually
         created,
         based on the pial surface.

         Is it possible to generate the corresponding WM vol based on a
         new
         label (not pre-defined)?


         --
         Daniel (Yung-Jui) Yang, Ph.D.
         Postdoctoral Researcher
         Yale Child Study Center
         New Haven, CT
         Tel: (203) 737-5454

         On 3/3/14 2:17 PM, "Douglas N Greve"
         <mailto:greve@nmr.mgh.harvard.edu%3E>> wrote:


              I don't understand. What label do you have? Do you mean a
         WM label
              or a
              cortical label that you want to find the WM under?

              On 03/03/2014 02:12 PM, Yang, Daniel wrote:

                  Hi Doug,

                  I am able to find wmparc.stats in stats. It shows WM
         vol based on
                  pre-defined ROIs.

                  However, do you know how can we generate
         corresponding WM vol
                  for a
                  given label (not the D-K ROIs)?

                  I'd like to use WM vol as DV but are limited to
         pre-defined ROIs.

                  Best,
                  Daniel

                  --
                  Daniel (Yung-Jui) Yang, Ph.D.
                  Postdoctoral Researcher
                  Yale Child Study Center
                  New Haven, CT
                  Tel: (203) 737-5454
                  E-mail: _yung-jui.yang@yale.edu_

                  On 3/3/14 1:14 PM, "Douglas N Greve"
                  <greve@nmr.mgh.harvard.edu
                  <mailto:greve@nmr.mgh.harvard.edu>
                  <mailto:greve@nmr.mgh.harvard.edu%3E>
         <mailto:greve@nmr.mgh.harvard.edu%3E%3E>> wrote:

                       It should be there if the recon did not fail.
         The file is
                  called
                       wmparc.stats (not wmparc_stats.txt)
                       On 03/03/2014 01:07 PM, Yang, Daniel wrote:

                           Thanks, Doug! But that is about using
         wmparc.stats as
                  IV or
                           continuous/covariate variables. I would like
         to use
                  WM vol as
                           the DV
                           (measure).

                           --
                           Daniel (Yung-Jui) Yang, Ph.D.
                           Postdoctoral Researcher
                           Yale Child Study Center
                           New Haven, CT
                           Tel: (203) 737-5454
                           E-mail: _yung-jui.yang@yale.edu_
                  <mailto:_yung-jui.yang@yale.edu_>
                  <mailto:_yung-jui.yang@yale.edu_>

                           On 3/3/14 12:58 PM, "Douglas N Greve"
                           <greve@nmr.mgh.harvard.edu
                  <mailto:greve@nmr.mgh.harvard.edu>
                  <mailto:greve@nmr.mgh.harvard.edu>
                           <mailto:greve@nmr.mgh.harvard.edu>
                           <mailto:greve@nmr.mgh.harvard.edu%3E>
                  <mailto:greve@nmr.mgh.harvard.edu%3E%3E>

                                you can just add them into your qdec
         file (from
                  wmparc.stats)
                                doug

                                On 03/02/2014 07:18 PM, Yang, Daniel wrote:

                                    Dear FreeSurfer Experts,

                                    FS provides thickness as the DV in
         qdec and
                           mri-glmfit. Do you
                                    know how I can have WM vol as the DV in
                  these tools
                           with the
                                    same GLM model? For example, I want
         to test
                  the WM
                           regions
                                    that is most strongly positively
         correlated
                  with a
                           given factor.

                                    Thanks!
                                    Daniel
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                                --
                                Douglas N. Greve, Ph.D.
                                MGH-NMR Center
                  <mailto:greve@nmr.mgh.harvard.edu>
                           <mailto:greve@nmr.mgh.harvard.edu>
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                       --
                       Douglas N. Greve, Ph.D.
                       MGH-NMR Center
                  <mailto:greve@nmr.mgh.harvard.edu>
                       Phone Number: 617-724-2358
                       Fax: 617-726-7422

                       Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
                       FileDrop:
         www.nmr.mgh.harvard.edu/facility/filedrop/index.html
                       Outgoing:



              --
              Douglas N. Greve, Ph.D.
              MGH-NMR Center
              Phone Number: 617-724-2358
              Fax: 617-726-7422

              Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
              FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
         www.nmr.mgh.harvard.edu/facility/filedrop/index.html
              Outgoing:



     --
     Douglas N. Greve, Ph.D.
     MGH-NMR Center
     Phone Number: 617-724-2358
     Fax: 617-726-7422

     Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
     www.nmr.mgh.harvard.edu/facility/filedrop/index.html
     Outgoing:



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

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/