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

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MegQ
November 21, 2016 10:58AM
Hello AFNI community,

I have two questions regarding the new (11/2016) installation of 3dClustSim.

1) Can the -ACF option be used with small volumes? i.e. are there any issues in using -ACF and -oksmallmask together?

2) We are interested in running 3dClustSim and 3dFWHMx in two ROIs- the bilateral amygdala and the vmPFC. Can all three (counting left and right amygdala as separate ROIs) be run in the same 3dClustSim command? Or does this lead to miscalculations of smoothness and cluster size? If there is an issue, would it still be present if only running the left and right amygdala (excluding vmPFC)? Essentially we're wondering if issues are produced if you have discontiguous ROI masks.

Thank you very much,
Megan
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Subject Author Posted

3dClustSim, ACF option and discontiguous ROIs

MegQ November 21, 2016 10:58AM

Re: 3dClustSim, ACF option and discontiguous ROIs

gang November 21, 2016 03:36PM

Re: 3dClustSim, ACF option and discontiguous ROIs

Bob Cox November 22, 2016 09:43AM

Re: 3dClustSim, ACF option and discontiguous ROIs

MegQ December 05, 2016 11:58AM