Re: [Freesurfer] question regarding minimum p-values in cortical thickness

Mike is correct. Thanks Mike!

doug

Michael Waskom wrote:

Hi Heidi,

You can use mri_segstats on the surface. You can either use the --label option or, if you have a lot of labels, you can merge them into an annotation with mris_label2annot and then use the --annot option to extract from all at once (values are extracted from each region separately; this just might save some time/typing).

Note that the file you're extracting from (the one after the --i flag) must be stored as a surface.

Best, Mike

On Mon, Aug 16, 2010 at 10:46 AM, <freesurfer-request@nmr.mgh.harvard.edu mailto:freesurfer-request@nmr.mgh.harvard.edu> wrote:

Hi,

Last year, I have been working for four months with David Salat
and so, I have learnt a lot, including the dt_recon command.
From David, I also learnt to use mri_segstats command in order to
get minimum p-values for each label in my volume.
However, now I have performed cortical thickness analyses. Based
on the results on the inflated surface, I created labels and
deprojected them to native space, to get the statistics.
Now, I also would like to have the minimum p-value of each label
in the cortical thickness analyses. However, the mri_segstats
command is not suitable for surfaces.
Do you have any idea how I can extract these minimim p-values?

Thank you very much.

Best
Heidi.

*

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    *Heidi Jacobs *
    /PhD student
    Faculty of Health, Medicine and Life Sciences/
    /School for Mental Health and Neurosciences/
    /Alzheimer Center Limburg/
    /Division Cognitive Neuropsychiatry and Clinical Neurosciences/
    _h.jacobs@np.unimaas.nl <mailto:h.jacobs@np.unimaas.nl>
    _www.maastrichtuniversity.nl <http://www.maastrichtuniversity.nl/>

    Dr. Tanslaan 12, 6229 ET Maastricht
    P.O. Box 616, 6200 MD Maastricht, The Netherlands
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