Thanks Doug, 
I've seen the page, but I understand that everything is within the same subject. I want to find the equivalencies between subjects. I mean, the plane y = 30 in fsaverage, will correspond to a plane with a bigger Y for a larger head (could be defined anatomically, the most outer point of the hippocampus, for example. 

When finding equivalencies for surface ROIs from one subject to another we used label2label for example. If I have an overlay in volume space, how should I "move" it to another subject? 

Thanks again, 
Gari



On 12/03/2013, at 20:29, Douglas Greve <greve@nmr.mgh.harvard.edu> wrote:

Hi Gary, check out this wiki page and let me know if you still have questions
http://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems
doug

On 3/12/13 8:04 PM, Garikoitz Lerma-Usabiaga wrote:
Hi!
how can I translate a coordinate in talairach space of one subject (Colin27), to every subject in a study? For example, I would like to know where is the coordinate Y = +30 Talairach of Colin27 in Subject_00, Subject_01, etc.

Should I use vol2vol to create a volume for every subject? Is there any direct method with register matrices or something like that?

Thank you very much,
Gari


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