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Dear Freesurfer experts, 

I am trying to obtain the average thickness of the brain lobes. I am particularly interested in the temporal lobe. 
I have run "mri_annotation2label" (--lobeStrict) and "mris_anatomical_stats" commands and I have obtained the average thickness of the different lobes in each hemisphere. However, I am interested in obtaining data of both hemispheres together, that is, a single thickness average for example for the temporal lobe. Is there a way to calculate it? Could I just sum both averages from each hemisphere?

Thank you very much in advance. 

Kind regards, 

Agurne