[Freesurfer] Which command generates the lh.area.pial.fsaverage.mgh file?

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Dear FreeSurfer experts,

I would like to know how to (re-)generate the files 'lh.area.pial.fsaverage.mgh' and 'rh.area.pial.fsaverage.mgh' for a subject (in the surf/ dir).

I have tried the following: 1.) ensured that the source files, lh.area.pial and rh.area.pial, exist (under surf/). 2.) run: 'recon-all -s <subject> -qcache -measure area'

But this does not generate the expected files (only those for the white surface).

Any clues?

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