[Freesurfer] Report Effect Sizes of Significant Clusters - using .mgh files

We used the gamma.mgh and rstd.mgh files to derive an effect size file that we called cohensd.mgh. How can I access these files to report effect size (Cohen's *d*) for significant clusters? ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu

[Freesurfer] Acquiring Exact p Values

Hello, I am conducting surface group analyses and would like to acquire exact p values. The FreeSurfer manual notes that the number listed after the peak coordinates and the vertex # is a "significance value," and that the "significance in this display is a -log(10)p value, and not a straight p