[Freesurfer] Extract overlay value from fsaverage ROIs

Hi,

Just wondering whether it is possible to extract values from an overlay created on fsaverage for aparc parcellated regions e.g. the mean of a statistical test parameter for specific aparc ROIs?

I know it is possible to extract values for individual subjects on the basis of fsaverage ROIs, but all I would need is the mean for individual ROIs on fsaverage.

Thanks for your help!

----------------------------------------- Dr. Christine Ecker Section of Brain Maturation (PO50) Department of Psychological Medicine De Crespigny Park, Denmark Hill London SE5 8AF

Phone: 0207 848 0947 Email: c.ecker@iop.kcl.ac.uk -----------------------------------------