Look in the ?h.aparc.stats file for mean cortical thickness; I'm not sure what you mean by the thickness of white matter.

On 8/26/2020 8:25 AM, vittal korann wrote:

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Dear FreeSurfer experts

I'm trying to get global mean thicknesses of white matter and gray matter separately. But stats folder in the subjects list does not mention explicitly. 
Is there a way to get these two thicknesses? 

Any assistance would be appreciated with deep respect.

With regards
Korann

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