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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RWCox
November 26, 2017 07:42PM
It is best, as Gang implies, to extract the global signal and then include it in your regressions in the pre-processing, which presumably are removing other signals "of no interest". Regressing one thing out by itself after the other regressions is not usually a proper form of analysis -- if you regress out A and then B, the result is not the same as regressing out B and then A (unless A and B are orthogonal).
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function to remove global signal without doing other pre-processing?

russell_butler November 23, 2017 11:12AM

Re: function to remove global signal without doing other pre-processing?

gang November 24, 2017 07:54AM

Re: function to remove global signal without doing other pre-processing?

RWCox November 26, 2017 07:42PM