Run mris_preproc with the usual arguments but specify --meas w-g.pct.mgh Then run the rest of the group analysis as if it were a surface file.

On 10/4/2019 6:44 PM, WON JONG CHWA wrote:

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Hello,

I would like to perform a group difference analysis with gray-white matter contrast between healthy controls and patients, covarying for the cortical thickness at each vertex throughout the entire brain surface. How would we go about doing this?

Thank you.

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