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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Gang Chen
February 05, 2004 06:52PM
Jeremy,

Wothout access to the data, it is hard to make judgment, but, first, do those huge % signal changes (also baseline coefficients around 10 and condition coefficients around 40) occur everywhere, or only around some area such as the border or outside of the brain?

In stead of converting the regressor coefficients into percent signal change, I prefer normalizing the original dataset before running 3dDeconvolve so that the regressor coefficients would be automatically the percent signal change. Check out Doug Ward's following message:

[afni.nimh.nih.gov]

Gang
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%signalchange

Jeremy February 05, 2004 04:00PM

Re: %signalchange

Gang Chen February 05, 2004 06:52PM