It is stored as a label, see fsaverage/label/?h.cortex.label
doug

On 8/5/13 1:14 PM, John Richey wrote:
Dear freesurfer experts, 

I was wondering whether there is an existing mask for the left and right hemispheres for fsaverage.  I can't seem to find any documentation of this, but perhaps I am missing something? 

Thanks in advance, 
John.






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