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
January 13, 2023 07:56PM
Hi Ian,

1. If the -global_times option is used first (in which case, ALL stim files should be global), then they will be read as global. Without that, 3dDeconvolve would warn about "times outside the range ..." and "unusable times follow".

And plotting those vectors from the X-matrix should show events going to the end.

Note that -global_times (or -local_times) should precede all relevant input timing files.


2. Yes, alt+z vs alt+z2 is almost a 1/2 TR difference in every slice time. It would be highly preferable to correct that (3drefit -TR) and reprocess. The mistake should not have a huuuge effect, but you won't want to leave it.

- rick
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Subject Author Posted

Timing File and Slice Timing Question

brainboi January 13, 2023 06:58PM

Re: Timing File and Slice Timing Question

rick reynolds January 13, 2023 07:56PM

Re: Timing File and Slice Timing Question

brainboi January 17, 2023 01:30PM