Follow the same procedures that you used to get the input (--y) to mri_glmfit, then run

mri_segstats --seg cache.th13.abs.sig.cluster.mgh --i y.new.mgh --excludeid 0 --avgwf avg.thickness.dat

The avg.thickness.dat will be a file with a row for each subject and a column for each cluster

doug

On 12/15/2015 06:30 PM, Bronwyn Overs wrote:

Hi Freesurfer Mailing List,

I have just completed a GLM analysis with monte carlo correction and now have my "cache.th13.abs.sig.cluster.mgh" files showing the significant clusters for a specific contrast. I would now like to get mean cortical thickness values for these ROIs in another unrelated MRI sample. What is the simplest means of mapping these clusters to my other sample so that I can extract the stats?

Kind regards,

Bronwyn Overs Research Assistant

Neuroscience Research Australia

Neuroscience Research Australia Margarete Ainsworth Building Barker Street Randwick Sydney NSW 2031 Australia *M* 0411 308 769 *T* +61 2 9399 1883

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