Dear Freesurfers,

           When I do the Monte-Carlo simulation after mri_glmfit between my groups, I get an output summary file for each of my contrast. In that summary file, there are multiple columns for coordinates, threshold values, number of vertices and size (mm2). My question is, how is this area in mm2 calculated? Is it from the number of vertices? If so, is there a standard algorithm for arriving at the area?

Thanks in advance

Koushik