Hi Irina that is what surf2surf does. The mapping is encoded in the vertex locations in the ?h.sphere.reg files. surf2surf finds the nearest set of vertices on the target sphere for each one on the source sphere and interpolates onto it, then does the inverse mapping to fill holes
cheers Bruce
On Fri, 16 Aug 2013, Irina Simanova wrote:
Hello,
I have fMRI data from a small group of subjects. I did a surface-based MVPA (in matlab) in subjects' individual space, and for each subject I have a vector of, say, p-values (one value for each vertex). I would like to display these results on a template surface. So I would like to know the mapping for each vertex to the template surface (as described in http://ftp.nmr.mgh.harvard.edu/fswiki/SurfaceRegAndTemplates)
I used mris_register to register individual subjects' surfaces to .average.curvature.filled.buckner40.tif. What is the next step? Is there a way to have the mapping from the resulting registered spherical surface to an inflated (template) surface?
Or should I use mris_surf2surf? If I just want to get the mapping for each vertex of my subject to the template, what arguments to the function should I specify? Are there any additional steps required (like, for example, aligning the surface with the template)?
Thank you in advance, Irina
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