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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Tyler
December 16, 2009 11:42AM
One of the instructors at a recent AFNI bootcamp suggested that, for sagittal slices, 2D registration might be performed on the slices prior to 3D registration of the volumes. The suggestion was that nodding motion might be effectively corrected by the 2D registration. Does anyone have an idea for how to best account for this stepwise registration in the deconvolution? I could include 9 regressors (6 from 3D, plus 3 from 2D), but I imagine potential collinearity issues.

Thanks for your thoughts.

Tyler
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2dImReg, 3dvolreg, and regression

Tyler December 16, 2009 11:42AM

Re: 2dImReg, 3dvolreg, and regression

rick reynolds December 16, 2009 01:29PM

Re: 2dImReg, 3dvolreg, and regression

Tyler December 16, 2009 02:16PM