Re: [Freesurfer] GLM - correction for multiple comparisons

2019-02-14 Thread Barletta, Valeria
on behalf of Greve, Douglas N.,Ph.D. Sent: Thursday, February 14, 2019 12:14:27 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] GLM - correction for multiple comparisons It is certainly possible. Are some of the clusters in abs negative? Also, I would strongly recommend using

Re: [Freesurfer] GLM - correction for multiple comparisons

2019-02-14 Thread Greve, Douglas N.,Ph.D.
It is certainly possible. Are some of the clusters in abs negative? Also, I would strongly recommend using permutation if you are using such a low clusterwise threshold. See https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/MultipleComparisonsV6.0Perm The monte carlo simulation is not valid