Freesurfer Developers,

I recently received FS data from a collaborator which included measures such for which, I as a FS user, I am familiar (i.e. GrayVol.lh.Frontal and
GrayVol.rh.Frontal).  Also included were the following 2 variables: Local_Gray_Matter and Local_White_Matter.  I have not come across these measures in my use of FS.  My questions are: 

1) are these variables part of FS output?  If so, what output file contains them?
2) if they are FS variables, what do these measures (Local_Gray_Matter and Local_White_Matter) include?

Thank you in advance for your time,
Deana



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