In theory it is because the F can be converted to a p which can be converted into a pseudo-z. When you run mri_glmfit-sim, you should make sure to use an unsigned test ("abs")

Hi Freesurfer experts.

Does mri_glmfit-sim Monte-Carlo cluster size correction is also usable for F-test?

The doc says that it synthesizes a z map (I assume from a  normal distribution) for computing the voxel-wise thresholds and cluster size distribution.

Maybe I am wrong with my stats but I wonder if it is ok to use this null-hypothesis to a F-distributed data such as results from a F-test.

Thanks!

--

Basile Pinsard

PhD candidate,

Laboratoire d'Imagerie Biomédicale, UMR S 1146 / UMR 7371, Sorbonne Universités, UPMC, INSERM, CNRS
Brain-Cognition-Behaviour Doctoral School , ED3C, UPMC, Sorbonne Universités
Biomedical Sciences Doctoral School, Faculty of Medicine, Université de Montréal
CRIUGM, Université de Montréal

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