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Dear FreeSurfer experts,

I have created a custom measure on the pial surface of a number of subjects, 
and I would like to map the data to the fsaverage subject. (By custom measure I 
mean something like 'area' or 'curv', i.e., one scalar value per surface 
vertex.)

I have already done the same for the white surfaces, and it was pretty 
straight-forward:
1) Save the per-vertex data in a curv-format file in 
SUBJECTS_DIR/<subject>/surf/?h.<measure>
2) Run 'recon-all -s <subject> -qcache -measure <measure>'

This will map the data to fsaverage and create files named 
?h.<measure>.fwhm<n>.fsaverage.mgh in the surf/ directories as expected (where 
<n> is 0, 5, .., 25).

My question is: how can I do the same for my data from the pial surface? Are 
there any command line options for 'recon-all' (or maybe for mris_preproc) that 
can do this?

I already tried to put the pial per-vertex data into files named 
SUBJECTS_DIR/<subject>/surf/?h.pial.<measure>, but they are not handled by the 
recon-all command listed above: no fsaverage files show up for them.

Thanks in advance,

Tim

--
Dr. Tim Schäfer
Postdoc Computational Neuroimaging
Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy
University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany

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