I don't know of a tool that would do it. I could imagine measuring the
spatial autocorrelation function, then running the MC simulation using
that instead of a gaussian (AFNI added this, but it only runs in the
volume). Getting a particular ACF on the surface would be hard.
On 05/16/2017
Hi Doug,
Thanks for that! with regards to your last point
Unfortunately, it does not help much. Much was made of the bug that Eklund,
et al, found in the alphasim program (the AFNI mc simulator), but even
after fixing it, the volume-based analyses still had very high false
positive rates. This
you can't really do permutation at the first level because the temporal
autocorrelation and non-orthogonal design matrix violate the permutation
assumptions.
On 5/15/17 11:23 PM, Kevin Aquino wrote:
Actually,
would would be preferable would be running a permutations test
something that you
On 5/15/17 10:34 PM, Kevin Aquino wrote:
Hi all,
First of all, Freesurfer V6 is working like a dream, my 0.7 mm
segmentations are running really well and in comparisons to
hi-resrecon in 5.3 and early beta, I'm having to do fewer manual
corrections!
Now for my questions,
1. I'm running
Actually,
would would be preferable would be running a permutations test something
that you describe in:
http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg49846.html
is there an easy to run mri_glmfit-sim's permutation simulations on a
single subject?
I've run through the FS-FAST
Hi all,
First of all, Freesurfer V6 is working like a dream, my 0.7 mm
segmentations are running really well and in comparisons to hi-resrecon in
5.3 and early beta, I'm having to do fewer manual corrections!
Now for my questions,
1. I'm running mri_mcsim in order to correct for multiple
