[caret-users] different number of nodes

[John Harwell]

Markus,

How did you map the volume to the surface?  It appears that you may  
have mapped it to the colin atlas which contains 71723 nodes.

Are you trying to view the results on the  
Human.SPM_T1_TEMPLATE.R.Fiducial.17856.coord surface (17856 nodes)?   
If so, this will not work as the metric file must have the same number  
of nodes as the surface.  If you want to view the functional data on  
the Human.SPM_T1_TEMPLATE.R.Fiducial.17856.coord surface, you will  
need to map the functional data to that surface.

Lastly, if you are mapping group results, we recommend the PALS atlas (http://sumsdb.wustl.edu/sums/humanpalsmore.do 
) for mapping and viewing.  For an individual, you need to map the  
functional volume to the individual's surface.

-----------------------------------
John Harwell
john at brainvis.wustl.edu

Department of Anatomy and Neurobiology
Washington University School of Medicine
660 S. Euclid Ave   Box 8108
Saint Louis, MO 63110




On Nov 24, 2008, at 8:24 AM, Markus Goldhacker wrote:

> Hello,
>
> I'm working with CARET for my physics diploma. Recently I had a  
> problem
> with mapping a contrast from SPM on a 3D-model. I got the following
> error:
>
> Error  map_data_2_COLIN_RIGHT_17_Nov_2008_12_17_42.metric:  contains a
> different number of nodes than
> Human.SPM_T1_TEMPLATE.R.Fiducial.17856.coord
>
> The volume-file was the SPM T1 template. I don't know what to do. What
> went wrong? How can I change the number of nodes? How can I make them
> equal?
>
> Thanks in advance!
>
> Kind regards
>
> Markus Goldhacker
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