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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rick reynolds
May 03, 2023 10:21AM
It looks like one of the NN responses is being totally censored out (which is not so odd). That is one difficulty with IM, there is a reasonable chance that censoring will cover all of the time points for at least one event response, giving you one or more all-zero regressors. To have it proceed, it is necessary to include at least the warned about -GOFORIT level (in this case, 3). But some subjects might have higher levels if this happens more.

The other question is what to do for these events, as you have no estimate of a BOLD response for them. If it is a very low fraction of events, you might choose to ignore them. I am curious what Gang tends to suggest.

- rick
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Error while running 3ddeconvolve with stim_times_IM

SanjanaH May 03, 2023 07:36AM

Re: Error while running 3ddeconvolve with stim_times_IM

rick reynolds May 03, 2023 10:21AM