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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July 04, 2009 09:49AM
We have a multi-run experiment. Occasionally we need to bring the subject out and redo the landmarking. The estimated motion parameters from image co-registration will have large mean offsets for the runs after that. If we use the motion parameters for regression analysis, do we need to de-mean/trend to remove the offsets?
Subject Author Posted

De-mean/trend motion parameters for regression?

Yisheng Xu July 04, 2009 09:49AM

Re: De-mean/trend motion parameters for regression?

bob cox July 04, 2009 12:22PM

Re: De-mean/trend motion parameters for regression?

rick reynolds July 05, 2009 09:30PM

Re: De-mean/trend motion parameters for regression?

Yisheng Xu July 06, 2009 10:17AM

Re: De-mean/trend motion parameters for regression?

rick reynolds July 06, 2009 10:47AM

Re: De-mean/trend motion parameters for regression?

Yisheng Xu July 06, 2009 05:43PM

Re: De-mean/trend motion parameters for regression?

rick reynolds July 06, 2009 07:16PM

Re: De-mean/trend motion parameters for regression?

rick reynolds July 06, 2009 08:43PM