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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January 25, 2017 02:17PM
> I am not sure how I could assess the relationship between co-variance strength and a
> behavioral score using AFNI (B3(Behavioral Score X Tseed)).

For the interaction effect, center each of the two covariates first, and then create the 3rd covariate as the multiplication of the two centered covariates. And set no centering in 3dttest++.

Gang
Subject Author Posted

Cortical thickness analysis (Structural covariance networks)

IsabelleD January 25, 2017 09:11AM

Re: Cortical thickness analysis (Structural covariance networks)

gang January 25, 2017 02:17PM