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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gang
May 01, 2015 04:30PM
With anxiety as an explanatory variable, your model is

brain response = a + b * anxiety + e

In the output of 3dttest++, you would get two sets of results:

1) the association between anxiety and brain response (value 'b' in the above model);

2) brain response (value 'a' in the above model) when anxiety is controlled at a center value. Read the centering part in the 3dttest++ help:

3dttest++ -help | less

and the following:

[afni.nimh.nih.gov]

Gang
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3dttest++

Emily May 01, 2015 03:52PM

Re: 3dttest++

gang May 01, 2015 04:30PM