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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Danny
March 06, 2015 03:46PM
Hi AFNI Experts,

I recently ran a gPPI analysis. I am now wanting to extract the betas (or z-scores) into a text file, so that I can correlate the gPPI index at a target region with offline self-reported measures of anxiety. I believe that 3dttest++ does something similar if I use a covariate file with the anxiety measures.

But I want to instead extract the values into a text file and create scatter plots of this relationship...Since the interaction term for the gPPI isn't created at the individual subject-level, would I need to use 3dcalc to create a difference score between my two conditions (e.g., [Seed X condition A] - [Seed X condition B])? Then I could extract this value into a text editor for creating plots and offline correlations?

Thanks,

Danny
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Subject Author Posted

gPPI and extracting betas/z-scores

Danny March 06, 2015 03:46PM

Re: gPPI and extracting betas/z-scores

gang March 06, 2015 05:24PM

Re: gPPI and extracting betas/z-scores

Danny March 06, 2015 05:35PM

Re: gPPI and extracting betas/z-scores

gsudre May 21, 2015 03:50PM

Re: gPPI and extracting betas/z-scores

gang May 21, 2015 05:56PM