[caret-users] mapping SPM5 activations volume to a Caret surface

[Donna Dierker]

Hi Antoine,

It almost NEVER makes sense to map onto the inflated surface.  It OFTEN 
makes sense to display data [that has been mapped onto a fiducial 
surface] on an inflated surface.

We actually do have a SPM5 surface, but we haven't yet released it, 
because the next major Caret release is pending some more important 
improvements.  I can tell you honestly that the difference between the 
SPM2 and SPM5 average surfaces would be nowhere near the top of my list 
of things to worry about.  It's much closer to the bottom of that list.

So, I would map to atlas, selecting the SPM2 surface.

I hope my answer is clear. ;-) Let me know if not.

Donna

On 10/06/2008 08:56 AM, Antoine Aballéa wrote:
> Hi all,
>
> While mapping normalized spm5 activations maps on the PALS-B12 caret 
> surface, I have some questionning about the choice of the successives 
> input files, knowing that I will use the inflated surface to display 
> fMRI results : should I choose the 'fiducial SPM2 coord file', or the 
> 'inflated' corresponding file? i.e. the surface on which results will be 
> mapped should be equivalent to the spm5 volume, or should it be the one 
> where you're going to display the results?
>
> I hope my question is clear!
>
> Many thanks in advance for your help.
>
> -Antoine
>
>
>
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