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Thank you so much Dr. Fischl, that information is very helpful.
On Thu, Dec 20, 2018 at 12:18 PM Bruce Fischl
wrote:
> Hi Martin
>
> you can use whichever surface you want - they are just different
> biological questions. The files we write out by de
Hi Martin
you can use whichever surface you want - they are just different
biological questions. The files we write out by default relate to the
white surface, but you can certainly generate the equivalent for the pial
using mris_curvature.
In general the curvature is 1/r, where r is the rad
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Thank you so much every one for helping me in this regard. I have some
follow up questions:
I am interested in associating mean curvature (H) with some behavioral
measure. After extracting subject-wise mean curvature estimates, I found a
significant po
a 2D manifold has two principal curvatures, usually called k1 and k2,
which are the curvature in the direction of maximum curvature and minimum
curvature (they are also the eigenvalues and eigenvectors of the Hessian of
the surface if it is expressed as a function over the tangent bundle). The
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K and H are the Gaussian Curvature and the Mean Curvature. Both can be computed
based on the 2 principal curvatures k1 and k2 of a surface.
K and H are not identical to the folding index, though they are related to it
via k1 and k2. k1 and k2 are als
I'll leave that up to Bruce and Rudolph
On 12/19/2018 05:37 PM, Martin Juneja wrote:
>
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>
> Thanks Dr. Greve. That works, but both white.K and white.H are giving
> me very different output values.
>
> For example, for first few subjects I get:
> -0.00237 -
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Thanks Dr. Greve. That works, but both white.K and white.H are giving me
very different output values.
For example, for first few subjects I get:
-0.00237-0.00450-0.00204 0.00113-0.00228-0.00958
-0.00314 0.00180-0.00452 if I
something like --meas white.K or white.H
On 12/19/2018 04:23 PM, Martin Juneja wrote:
>
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>
> Hi,
>
> Just like volume, I have "Folding Index" measures saved in
> lh/rh.aparc.stats files for each subject.
>
> If I am using mris_preproc *--meas volume* --out C
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Hi,
Just like volume, I have "Folding Index" measures saved in
lh/rh.aparc.stats files for each subject.
If I am using mris_preproc *--meas volume* --out CV/lh.CV.mgh command to
concat cortical volume files from all subjects, then how can I use this
c
