Sorry for the repost of my last post, but I now realize that what I need is the estimated filter width that was actually used in the qdec analysis not the fwhm that I actually specified, i.e. 10 mm


http://afni.nimh.nih.gov/afni/community/board/read.php?1,66182,66190#msg-66190

On Sun, Nov 29, 2015 at 2:51 PM, Emma Thompson <voneconomos@gmail.com> wrote:

Dear Freesurfers,

I am reposting my message in hopes that someone will reply this time around - still grappling with this problem. Thanks.

On Tue, Oct 27, 2015 at 8:59 AM, Emma Thompson <voneconomos@gmail.com> wrote:

Dear Freesurfers,

I am trying to use 3dclustsim in AFNI to determine the minimum number of voxel in a cluster to reach significance, my understanding is that in the command line the -fwhm s flag refers to the gaussian filter width and NOT the Gaussian Kernel, can anyone point me to how I might be able to obtain this for each hemisphere in freesurfer? I am using my own average brain that I created, but it would help to know how to do this for the fsaverage as well.

Many thanks for your help!


http://afni.nimh.nih.gov/pub../pub/dist/doc/program_help/3dClustSim.html

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