yes, I believe so
Bruce
On Wed, 28 Sep 2016, Hanbyul Cho wrote:
Dear FreeSurfer Team,
I have an additional question about the ?h.sulc.
[mris_anatomical_stats can do this if you specify sulc as the
"thickness" file]
your explaination means that
instead of the
mris_anatomical_stats -l <specific label> -t lh.thickness -b -f <output
values> <subjects> lh
I can use these command with change the -t option:
mris_anatomical_stats -l <specific label> -t lh.sulc -b -f <output values>
<subjects> lh
After then,
at the output values the header 5. thickAvg (Average Thickness) value can
show an average of sulcal depth vector value.
Is it correct understanding?
I appreciate your detailed explanation.
Best Regards,
Han.
On Mon, Sep 26, 2016 at 12:34 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu>
wrote:
1. It is the signed dot product of the movement vector with the
outwards pointing surface normal of the white matter surface
during inflation.
2. Yes, because moving inwards for gyri the dot product is
negative.
3. Yes, I think so, although I'm not sure I understand.
4. mris_anatomical_stats can do this if you specify sulc as the
"thickness"
file
On Mon, 26 Sep 2016, Hanbyul Cho wrote:
Dear FreeSurfer Team,
I have questions about the sulcal depth.
1) I heard that the output/surf/?h.sulc is showing
the sulcal depth.
Is it correct that the sulcal depth measure unit
is normalized z-score, mm? And is
it correct that the (-) values of sulcal depth mean
gyral region (green), and (+)
values mean sulcal region (red)?
2) I wonder if ?h.sulc is based on white matter
surface or pial matter surface.
3) I analyzed the sulcal depth by vertex-level. if
the results include the sulc (-)
values region, Is it meaning that the gyral height?
4) I wonder the method/commands for extracting the
sulc value by label-level.
5) Could you let me know the recommended smoothing
option if it possible? (e.g.
--fwhm-trg [N])
I appreciate your help.
Thank you.
Han Byul Cho
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