Re: [caret-users] displaying brodmann areas

2014-05-20 Thread Donna Dierker
Hi Gabriel,

More detail on how you "created surfaces from my own template" might help here, 
but let me extrapolate and provide information that might be relevant.

I assume you want the Brodmann parcellation in the form of surface-based 
paint/label or border form (i.e., the kind of thing shown in the Caret 
tutorials).  These are available on our atlases, e.g., the PALS-B12 and 
Conte69/fs_LR atlases.  If you have your own surface-based atlas, and you want 
to bring the paint/borders David van Essen generated to that atlas, then you 
will need to register your atlas to one of ours.  If you have a mean 
midthickness surface for your atlas, then you can use it, along with less 
folded configurations (e.g., inflated, ellipsoid, spherical) to draw 
registration borders and use surface-based registration to get the two atlases 
in as close correspondence as possible.  If you haven't done it before, it's 
not the easiest thing, but it's not as bad as, say, segmenting post-mortem 
brains.

There are other anatomical atlases out there in volumetric form (e.g., 
automated anatomical labeling / AAL ; the Harvard-Oxford cortical/subcortical 
atlases (http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/Atlases).  Depending on how hard 
it is to get your surface in the same stereotaxic space as these atlases, they 
may or may not be helpful.

If you decide to go the surface-based registration route, then you will need a 
spherical configuration of your atlas.  I don't know of a more current tutorial 
than this one:

http://brainvis.wustl.edu/wiki_linked_files/documentation/Caret_5.5_Tutorial_Segment.pdf

I hope someone will speak up if he/she knows of a more current one.

Donna


On May 20, 2014, at 5:19 AM, Gabriel Gonzalez Escamilla  wrote:

> Dear caret experts, 
> 
> I'm using caret v5.62. I have created surfaces from my own template, and 
> everything worked fine, I can map my results onto the surfaces without a 
> problem by using the "Map Volume(s) to Surface(s)" tool. 
> 
> Now I would like to visualize my clusters (metric) over the brodmann areas in 
> my template surfaces, but I don't know how, or find any manual to do so. Do I 
> need to downlowad the BA_atlas from somewhere or is it included in caret and 
> only need to make some king of mapping to my template surfaces?
> 
> Can you guide me on ti? Any help will be so appreciated.
> 
> Many thanks in advanced,
> Gabriel ___
> caret-users mailing list
> caret-users@brainvis.wustl.edu
> http://brainvis.wustl.edu/mailman/listinfo/caret-users


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[caret-users] displaying brodmann areas

2014-05-20 Thread Gabriel Gonzalez Escamilla
Dear caret experts, 

I'm using caret v5.62. I have created surfaces from my own template, and 
everything worked fine, I can map my results onto the surfaces without a 
problem by using the "Map Volume(s) to Surface(s)" tool. 

Now I would like to visualize my clusters (metric) over the brodmann areas in 
my template surfaces, but I don't know how, or find any manual to do so. Do I 
need to downlowad the BA_atlas from somewhere or is it included in caret and 
only need to make some king of mapping to my template surfaces?

Can you guide me on ti? Any help will be so appreciated.

Many thanks in advanced,
Gabriel

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