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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October 23, 2014 08:37PM
I have found some motion anomalies by subtracting a time-shifted EPI from itself; TR5-TR4, TR6-TR5, TR7-TR6 etc...

If there is no motion between TRs, the difference images should be near zero values. Some parts of my difference images show movement in one part of the brain, while the remainder of the image values are near zero.

Is volreg picking up on this? Perhaps not; in plane motion?

Has anyone looked for a similar type of motion, and have you tried to censor these TRs?

Thanks,

Peter
Subject Author Posted

partial image motion and corrections

PeterK October 23, 2014 08:37PM

Re: partial image motion and corrections

rick reynolds October 24, 2014 12:11PM

Re: partial image motion and corrections

PeterK October 24, 2014 01:41PM

Re: partial image motion and corrections

rick reynolds October 24, 2014 02:20PM