AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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May 17, 2017 07:33PM
Hi Naail,

It isn't exactly the voxel count that is the reason, it is the
very heavy bias in selected voxels. It sounds like you are
running FDR restricted to voxels that have small p-values,
which will almost force such strange results (q ~= p) until
p goes well below the original threshold.

In any case, it does not seem appropriate to run FDR after
thresholding. The FDR mask should be independent of the
tests in question.

- rick
Subject Author Posted

q values smaller than p

naailk90 May 17, 2017 02:15PM

Re: q values smaller than p

rick reynolds May 17, 2017 03:20PM

Re: q values smaller than p

naailk90 May 17, 2017 04:30PM

Re: q values smaller than p

rick reynolds May 17, 2017 07:33PM

Re: q values smaller than p

naailk90 May 18, 2017 02:35PM