Re: [Freesurfer] Problems with MonteCarlo analysis

2015-03-09 Thread Douglas Greve
The first command sets the voxel-wise threshold to p<.0001, which is pretty strict by itself. Is that what you wanted? Do voxels survive uncorrected at that level? The 2nd sets the voxelwise threshold at about .05. In both cases the clusterwise correction is .05 (ie, neither are 0.9), so I'm

[Freesurfer] Problems with MonteCarlo analysis

2015-03-09 Thread Sofia Rodriguez Penuela
Dear all, I’m trying to perform vertex-wise surface analysis on some PET data. After performing the group contrast, significant differences (uncorrected) are observed in a few clusters.These results apparently do not survive the Monte Carlo method. In order to ensure that the MC-z is working fin