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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December 16, 2008 02:25PM
Here's a long shot...(may not make sense at all!!)

First you should run 3dOverlap to actually determine how many voxels overlap between the 2 studies.

Then you "could" use a chi-square test.
You add the number of voxels in each cluster of each study (eg, 25 + 30), and then, say the overlap is 20 voxels, you can compare the likelihood of the Observed overlap (20) vs the Expected Overlap (55).

...my two cents
Subject Author Posted

Statistical Overlap between studies

Sarah Israel December 10, 2008 02:49PM

Re: Statistical Overlap between studies

Pat Bedard December 16, 2008 02:25PM