Re: [Freesurfer] correction for multiple comparison: simulation vs grf vs cache

2019-01-24 Thread Greve, Douglas N.,Ph.D.
Hi John, I would recommend that you use permutation. See https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/MultipleComparisonsV6.0Perm In terms of the threshold, "not going higher than .01" means using between 0 and .01 (eg, don't use .05). For permutation, you can use whatever thershold you

[Freesurfer] correction for multiple comparison: simulation vs grf vs cache

2019-01-23 Thread john Anderson
External Email - Use Caution Hi Dr Greve, I would like to correct surface based analyses of PET data for multiple comparisons. I ran group comparisons in three spaces. left and right hemispheres and subcortical. I used the method --cache in mri_glmfit-sim to correct the analyses