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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David
January 23, 2009 05:09AM
I have two questions about using Afni tools to find an optimal stimulus ordering.

1) Some websites (including [afni.nimh.nih.gov]) suggest using RSFgen, followed by waver -GAM, followed by 3dDeconvolve -nodata. Other websites (including [afni.nimh.nih.gov]) skip the waver step, and feed the RSFgen output directly to 3dDeconvolve. What are the pros and cons of each approach?

2) I thought you were supposed to use a polort of 0 whenever you ran 3dDeconvolve in -nodata mode. But recently I've been seeing examples all over the web (including the first link above) that use a polort of 1, 2, or higher. What gives?

Thanks!
Dave

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3dDeconvolve -nodata

David January 23, 2009 05:09AM

Re: 3dDeconvolve -nodata

rick reynolds January 23, 2009 10:12AM