If surface and TFCE, I would use " -tfce2D -T". On May 30, 2016, at 5:10 AM, Matthieu Vanhoutte <[log in to unmask]> wrote: > Dear FSL experts, > > In case of statistical analysis made on surface data (Freesurfer .mgh) and with TFCE correction, is it necessary to apply the -tfce2D option too ? > > Many thanks in advance ! > > Best regards, > Matthieu