Re: [Freesurfer] Files

And the input is already TimePoint2-TimePoint1? If so, then you will need two more contrasts: [1 0 0 ....] and [0 1 0 ....]. The first tells you if controls are thinning (blue) or thickening (red), the 2nd tells you if the training is doing the same. doug

On 10/25/2012 03:34 PM, Ryan wrote:

Doug, Yes, it's a longitudinal study since we MRI participants pre-training and post-training.

On Thu, Oct 25, 2012 at 2:37 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:

I'm not sure I understand. Is this a longitudinal study?


On 10/25/2012 01:26 PM, Ryan wrote:

    Doug,
       Also, how can I tell if it's thickening or thinning if
    red/blue corresponds to the group? Thanks for the help.

    ---------- Forwarded message ----------
    From: *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>>>
    Date: Thu, Oct 25, 2012 at 12:20 PM
    Subject: Re: Files
    To: Ryan <wmcgarry@gmu.edu <mailto:wmcgarry@gmu.edu>
    <mailto:wmcgarry@gmu.edu <mailto:wmcgarry@gmu.edu>>>


    That contrast will compute training-controls. In the maps,
    red/yellow will mean training>controls, blue/cyan otherwise

    doug



    On 10/25/2012 12:47 AM, Ryan wrote:

        Doug,
           Here are the Xg.dat (where the first column is for
    controls and
        the second column is for training subjects) and mtx files, I
        didn't use the FSGD design. Please let me know if this is
        sufficient for you to answer my question, thank you very much.

        --        -Ryan


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

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
<http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>
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-- -Ryan