Re: [Freesurfer] Permutation simulation produces unexpected results

2020-03-20 Thread Douglas N. Greve
The situation is complicated. First, you should run with --cwp 1 to get a list of all clusters. it maybe that a cluster is just barely out of threshold and so does not show up in the list. When you change the threshold you, you change the probability curve and obviously the size of the cluster

Re: [Freesurfer] Permutation simulation produces unexpected results

2020-03-14 Thread Purcell, Juliann
External Email - Use Caution At all other smoothing and threshold combinations, the simulations indicate that there are no significant clusters on the lateral surface of the left hemisphere, but there is a large cluster on the medial surface (lingual gyrus). For 10mm+th.13, howe

Re: [Freesurfer] Permutation simulation produces unexpected results

2020-03-13 Thread Douglas N. Greve
Can you say more about how the 10mm, th 1.3 is different than the others? On 3/11/2020 2:48 PM, Purcell, Juliann wrote: External Email - Use Caution Hi FreeSurfer Experts, I am running permutation simulations with several smoothing levels and cluster forming thresholds to evaluate th