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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jas2222
July 24, 2015 10:09AM
Dear AFNI,

This is my first time analyzing event-related fMRI data in AFNI (though I have analyzed it many times in other packages).

I have an event-related design that occurs across two runs. In the first run, only one type of stimulus occurs (let's call this stimulus A) and in the second run, only a second type of stimulus occurs (let's call this stimulus B). If I use local times, my understanding is that each row of your onset files ought to pertain to a run. However, if I have no events for Stimulus A in run 2 and no events for Stimulus B in run 1, I'm not sure of how to indicate that. Is this possible using local times? Would I just leave a blank first row for Stimulus B's onset file? And only fill out a first row for Stimulus A's onset file?

Thanks,
Jen
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Subject Author Posted

event-related onsets with only one condition type per run

jas2222 July 24, 2015 10:09AM

Re: event-related onsets with only one condition type per run

rick reynolds July 24, 2015 10:24AM

Re: event-related onsets with only one condition type per run

jas2222 July 24, 2015 10:30AM